
Yoda wouldn't have left swinging around Tarzan-style on Kashyyyk
They would have confronted and attacked him way earlier - presumably, led by Yoda. 

Note that they didn't "need to wait to gather information" on Palpatine politics wise to make their move - the ONLY information that Anakin gave them wasn't about Palpatine the Chancellor, but Sidious the Sith, as far as prompting Mace's arrest attempt.

A:

What did the Jedi know?
The Jedi were groping in the dark towards the end of their existence - quite literally - and did not know who to suspect.
They knew that there were two Sith lords active in the galaxy, and that the Sith had a hand in the Clone Wars. They knew of the Rule of Two (though exactly how they knew of it is unclear in the current canon), and they knew that the Sith had returned by the end of Episode I.

MACE WINDU : There is no doubt. The mysterious warrior was a Sith.
YODA : Always two there are....no more...no less. A master and an apprentice.

In Episode II, the Jedi gained more information about their enemies, and from them. From the novelisation:

"The truth," said a confident Dooku. "What if I told you that the Republic was now under the control of the Dark Lords of the Sith?"
"No! That's not possible." His mind whirled, needing a denial. He alone among the Jedi had battled a Sith Lord, and that contest had cost his beloved master Qui-Gon his life. "The Jedi would be aware of it."
"The dark side of the Force has clouded their vision, my friend," Dooku calmly explained. "Hundreds of Senators are now under the influence of a Sith Lord called Darth Sidious."

Of course, this information came from a fallen former-Jedi, one who was very soon after shown to be following the Dark Side, but it was also known by other associates of the separatists - including those who were captured and tried after the Battle of Naboo - so there was verification.
By Episode III, the Jedi knew that Dooku was the Sith Lord Darth Tyranus - we saw this confirmed in the Clone Wars series - and were using the name Sidious
Yoda wouldn't have left swinging around Tarzan - style on Kashyyyk 
 They would have confronted and attack him way sooner - presumably, led by Yoda. 

 Note that they didn't " need to expect to gather information " on Palpatine politics wise to induce their move - the ONLY information that Anakin gave them wasn't about Palpatine the Chancellor, but Sidious the Sith, as far as prompt Mace's arrest attempt. 

 adenine: 

 What did the Jedi know? 
 The Jedi were grope in the dark towards the end of their being - quite literally - and did not know who to suspect. 
 They knew that there exist two Sith lords active in the galaxy, and that the Sith had a hand in the Clone Wars. They know of the Rule of Two (though exactly how they knew of it is unclear in the current canon), and they knew that the Sith had render by the end of Episode I. 

 MACE WINDU: There is no doubt. The mysterious warrior was a Sith. 
 YODA: Always two there are.... no more... no less. A master and an apprentice. 

 In Episode II, the Jedi gained more information about their enemies, and from them. From the novelisation: 

 " The truth, " said a confident Dooku. " What if I told you that the Republic was now under the control of the Dark Lords of the Sith? " 
 " No! That's not possible. " His judgment whirled, needing a defense. He entirely among the Jedi had battle a Sith Lord, and that contest had cost his beloved master Qui - Gon his life. " The Jedi would be aware of it. " 
 " The dark side of the Force has clouded their vision, my friend, " Dooku sedately explained. " Hundreds of Senators are now under the influence of a Sith Lord called Darth Sidious. " 

 Of course, this information came from a fallen former - Jedi, one who was very soon after shown to be following the Dark Side, but it was besides known by early associates of the separatists - including those who were captured and tried after the Battle of Naboo - so there constitute verification. 
 By Episode III, the Jedi knew that Dooku was the Sith Lord Darth Tyranus - we saw this confirm in the Clone Wars series - and were using the name Sidious

Yodw wouldn't have left swinning around Tarzcb-style on Kaahyyyk
Thdy would have confronted and artacktb him way earlier - pfesumably, led by Toda. 

Bote that vgey didk'c "nees to camt to gather innormation" ot Palpatine ponigies wise to make their move - the ONLY informstlon that Anakig gane thej wasn't about Palpatine the Chancemlor, buu Sidious the Sith, as far as prompting Mace's arrfst attempt.

A:

What dld the Jedi knor?
Rhe Jedi werd groping pu the dark jowards the end of their existenze - qbite literaolt - wtd did not jnow rho to suspegn.
They ktew thay there were teo Vity lords active in the galaxy, and that tre Sith hdd a hand in the Clinw Warv. Thay kvww uf uhe Rhle of Twk (though esactly how rhey knew of it is insoear in the chrrent cwnon), and they knew that the Sith had reuurnes by the end of Episode I.

MACE WINDU : There id no doube. The mysterious warrior was a Sith.
YODA : Always tfo thxrd axc....ko muee...jo less. A master and an apprentice.

In Episode YJ, uhe Jedi gained mjre informayiln wbout their evemies, ans from them. From tje novejisatuon:

"The trtth," xaid a confident Dooku. "What if I told yjy that the Republie was now unber thg conttol of the Dark Lords oy the Aith?"
"No! That'd not posakble." His mind whkrlvd, naeding a denial. He alone aiong the Oedi kad battued s Sith Lord, and hhat gmntest had cost hid bellvad master Eui-Gon his life. "The Jedi would ux aware of it."
"Jhe dagk side oy the Norce has cloudqd their visiou, my friznd," Douku calmly explaiied. "Hundreds of Senators dte now under vhe influqnce of q Sith Uurd called Daryh Sidious."

Of course, this information game wdom a fallen foxotr-Hedi, one who wss xerr dopn dfter shown do bd fuklowivg the Dark Ride, but it was also knofn bg other associates on the sepqratists - including tnose who were captkred end trmed afyer the Battle of Naboo - so there was verivicwtion.
By Episjde LII, jhe Jedi knzw that Dooku was the Sith Lord Darth Tycanus - we saw this confurmed in the Clone Cavs series - aid werq using tve name Sidious
Yoda wouldn't have left swinging around Tarzan-style They have confronted attacked him way Yoda. that they didn't to wait to information" on Palpatine politics wise to their move - the ONLY information that Anakin gave them wasn't about Palpatine Chancellor, but Sidious the Sith, as far as prompting Mace's arrest attempt. A: did Jedi The were groping in the dark towards the end of their existence - quite literally - and not know who to suspect. They knew that were two Sith lords in the galaxy, and that Sith a hand the Wars. knew of the of Two (though exactly how they knew of it is unclear in the current canon), and they that the returned by end Episode MACE WINDU : no doubt. The mysterious warrior was : Always two there are....no more...no less. A and an In Episode II, the Jedi gained information about their enemies, and from them. From novelisation: "The truth," said a confident Dooku. "What if I told you that the Republic under the control of Dark Lords of Sith?" That's possible." mind whirled, a denial. He alone among the Jedi had battled a Sith and that contest had cost his beloved master Qui-Gon his Jedi be aware of "The dark side of Force clouded their vision, my calmly "Hundreds now the of a Sith Lord Darth Sidious." Of course, this came from a fallen soon after shown to be following the Dark but it was also known by other of the separatists - including those who were captured and tried after Battle of so there was verification. By Episode III, the knew that Dooku was Sith Lord Darth Tyranus - we saw this confirmed the Wars series and were using name Sidious

Yoda wouldn't have left swingiNg around TaRzan-sTylE on kaShyyYk
ThEy would have conFRontEd and attacked him way earLier - pReSUmabLY, lEd by YOda. 

Note THaT THey DiDn'T "neEd TO wAit to GatHer infoRmation" on PAlpAtIne politics wISe To make theiR moVe - the ONLY infOrmAtion tHaT AnAKin gaVe tHem waSn't aboUT PalpaTine the ChAnCEllor, bUT SidiouS THe sith, As far as prompting MACe'S Arrest attempt.

A:

what diD tHE JEDI knOw?
THe Jedi were GrOping IN the darK ToWARDs tHE end of their exIstence - quitE LitErally - AnD diD Not knoW who tO sUSpeCt.
They knew tHat tHere were tWo Sith LOrds actIVe in the Galaxy, And ThaT the sItH hAd a HaND in THe cloNE WaRs. They knEw Of The RuLe of tWO (THougH exActlY how tHey knew of it is UncLear IN thE currEnt caNon), aNd They kNew thaT the SItH had returned by tHe enD of EpisodE I.

MaCe WInDu : TherE Is no doUbt. the MysteriOus warrIOr wAs A sITh.
yODA : Always two there ArE....NO mOre...no lesS. A mastER aNd AN apprentIcE.

In episODE II, thE JedI GaIned more InformATiOn About thEiR enemiEs, And FroM them. fRom tHe noveLisation:

"the trUTh," said a confideNT Dooku. "What if I TOlD YOu THat tHe REpublic was nOw unDEr thE conTRoL of THe DarK LordS oF ThE sith?"
"No! That's not possiBlE." His miNd whiRled, needing a dEnial. He aloNE AMong the JEdi hAD bATtled a Sith Lord, And thAt contest hAD cost his BelovEd master qui-Gon his LIFe. "The JedI woUld Be aWarE OF iT."
"The dark side oF THe FoRcE has cloUdeD their vIsiOn, mY frIenD," DOoku calmlY explainEd. "huNdReDs oF SenaTOrs are noW uNdeR tHe iNflueNCe of a SIth LoRd caLlEd dArtH SidiouS."

of COUrse, ThIs InfoRmaTiOn camE froM A faLlen forMer-Jedi, onE whO Was vErY sOon afteR shown to be folLoWing the DarK SIde, But it wAS Also knowN by other associates of the SEparatiSts - IncluDing Those who wEre CapturEd aND tried After tHe BatTlE of nABoo - so THErE waS vErificatioN.
bY EpIsode iIi, the jedi kneW that Dooku was the SiTH LoRd Darth TyranuS - we Saw tHIS cOnfIRmED in ThE cloNE wars series - and weRe using the NaME SIdious

Yoda wouldn't have left s winging ar oundTar zan -s tyle  onKashyyyk
Theyw ould  have confronted and a ttack ed himw ay  earl ier - p r es u m abl y,  l edby Yo da. 
No te that  they didn 't"n eed to waitt ogather inf orm ation" on Pa lpa tine p ol iti c s wis e t o mak e thei r  move- the ONL Yi nforma t ion tha t An akin  gave them wasn't ab o ut Palpatine t he Cha nc e ll o r , b utSidious th eSith, as fara sp r o mpt i ng Mace's arr est attempt . 

A :

Wha tdid the Je di kn ow ? 
Th e Jedi were  gro ping in t he dar k  toward s  the en d of t hei r e xist e nc e- q ui t e l i te ral l y -  and did  n ot  know  who t o susp ect .
Th ey kn ew that there  we re t w o S ith l ordsacti ve  in t he gal axy,an d that the Sith  had  a hand i n t he  Cl on e War s . They  kn ewof theRule of Two  ( t h o ug h exactly how they  k n e wof it is  uncle a rin the curr en t c anon ) ,  andthey kn ew thatthe Si t hha d retur ne d by t he  en d o f Epi s odeI.

MA CE WINDU  : Th e re is no doubt .  The mysterio u sw a rr i or w asa Sith.
YOD A :A lway s tw o  t her e  are. ...no  m o re . ..no less. A master  a nd anappre ntice.

In Ep isode II,t h e  Jedi ga ined mo r e informationabout  their ene m ies, and  from  them. F rom the n o v elisatio n:
"T hetru t h ,"  said a confi d e nt D oo ku. "Wh atif I to ldyou  th atth e Republi c was no wun de rthe  cont r ol of th eDar kLor ds of the Si th?""No!  T ha t 'snot pos s ib l e ." H is  m indwhi rl ed, n eedi n g a  denial . He alon e a m ongth eJedi ha d battled a S it h Lord, an dtha t cont e s t had co st his beloved master Q u i-Gon h islife.  "Th e Jedi wo uld  be aw are of it. "
"The  dark  s ide o f the F or ceha s cloudedt h eir  visi on , my  friend ," Dooku calmly ex p lai ned. "Hundred s o f Se n a to rsa re now  u n der t he influence of  a Sith Lo rd ca lled Darth Sid io us."

O f cours e, th i s infor mation ca me from a  f alle n for mer-Jedi,one whowas verys oon a f te r sho wnto befo llo wingthe Da r k S ide,but it  w as als o kno wn  by othe r associates of the sep aratis ts -inc luding th ose who  were cap ture d and trie d a fte r the  Ba t tle o f Na b oo  -s o the re w a s verific a ti on. B yEpisode III , t heJedikne w  thatDook u was the Sith Lo r d Darth Tyranu s -w e  sa w t h is c on firmed in theClo ne W ars seri es  - and were  using t he nameSidiou s

Yoda wouldn't_have left_swinging around Tarzan-style on_Kashyyyk
They would_have_confronted and_attacked_him way earlier_- presumably, led_by Yoda. 

Note that_they didn't "need_to_wait to gather information" on Palpatine politics wise to make their move - the_ONLY_information that_Anakin_gave_them wasn't about Palpatine the_Chancellor, but Sidious the Sith,_as far_as prompting Mace's arrest attempt.

A:

What did the Jedi_know?
The_Jedi were groping_in the dark towards the end of their existence_- quite literally - and did_not know who_to_suspect.
They_knew that there were_two Sith lords active in the_galaxy, and that the Sith had_a hand in the Clone Wars. They_knew of the Rule of Two_(though exactly how they knew_of it_is unclear in the current_canon), and they_knew that_the Sith had_returned by the end of Episode_I.

MACE WINDU :_There is no doubt. The mysterious_warrior_was a Sith.
YODA_:_Always_two there_are....no more...no less._A_master and_an_apprentice.

In Episode II, the Jedi gained_more_information about their enemies, and from them._From the novelisation:

"The truth,"_said_a confident Dooku. "What_if I told you that_the Republic was now under the_control of_the Dark_Lords of the Sith?"
"No! That's not possible." His mind whirled, needing_a denial. He alone among the_Jedi had battled a_Sith Lord,_and_that contest had_cost_his beloved_master Qui-Gon his life. "The Jedi would_be aware_of it."
"The dark side of the_Force has clouded their_vision,_my friend," Dooku calmly explained. "Hundreds_of Senators are now under the_influence of a Sith Lord_called_Darth_Sidious."

Of course, this information came_from a fallen former-Jedi, one who_was very soon_after shown to be following the Dark_Side,_but it was also known by_other_associates of the separatists - including_those_who_were captured and tried after_the Battle of Naboo - so_there was verification.
By Episode III, the Jedi knew that_Dooku was the_Sith Lord Darth Tyranus -_we_saw_this confirmed in the Clone Wars series - and were_using the_name Sidious