▁the ▁right ▁tack le ▁will ▁face ▁the ▁def ending ▁team ' s ▁best ▁run ▁sto ppers . ▁He ▁must ▁be ▁able ▁to ▁gain ▁tra ction ▁in ▁his ▁blocks ▁so ▁that ▁the ▁running ▁back ▁can ▁find ▁a ▁hole ▁to ▁run ▁through . ▁ ▁Left ▁tack le ▁The ▁left ▁tack le ▁( LT ) ▁is ▁usually ▁the ▁team ' s ▁best ▁pass ▁block er . ▁Of ▁the ▁two ▁tack les , ▁the ▁left ▁tack les ▁will ▁often ▁have ▁better ▁foot work ▁and ▁ag ility ▁than ▁the ▁right ▁tack le ▁in ▁order ▁to ▁counter act ▁the ▁pass ▁r ush ▁of ▁def ensive ▁ends . ▁ ▁When ▁a ▁quarter back ▁throws ▁a ▁forward ▁pass , ▁the ▁quarter back ' s ▁shoulders ▁are ▁aligned ▁roughly ▁per pend icular ▁to ▁the ▁line ▁of ▁sc rim m age , ▁with ▁the ▁non - domin ant ▁shoulder ▁closer ▁to ▁down field . ▁ ▁Right - hand ed ▁quarter back s , ▁the ▁majority ▁of ▁players ▁in ▁the ▁position , ▁thus ▁turn ▁their ▁back s ▁to ▁def enders ▁coming ▁from ▁the ▁left ▁side , ▁creating ▁a ▁vulner able ▁" bl ind ▁side " ▁that ▁the ▁left ▁tack le ▁must ▁protect . ▁( Con vers ely , ▁teams ▁with ▁left - hand ed ▁quarter back s ▁tend ▁to ▁have ▁their ▁better ▁pass ▁block ers ▁at ▁right ▁tack le ▁for ▁the ▁same ▁reason .) ▁ ▁A ▁ 2 0 0 6 ▁book ▁by ▁Michael ▁Lewis , ▁The ▁Bl ind ▁Side : ▁E volution ▁of ▁a ▁Game , ▁made ▁into ▁a ▁ 2 0 0