what is the position of jakob busk?
goalkeeper
what role/office? there is a void created by saddam's departure. right now, the public at large does not know how to serve it's best interests, has no idea how to repair and rebuild, or who to have confidence in to do these things. you have removed the bully from the playground, but you didn't get all of his weapons- each of the junior bullies got a hand full before you found them. 
if you think there unrest now, pull out and watch how the new bully gets into place. that void will be filled. the quicker you pull out, the quicker you will be back, if you are interested in the lives of the people in iraq.
no war is popular. but to cut and run, death will come quickly to thousands in the infighting you mention. this is a quagmire that bush will always be remembered for, and he will not overcome the unpopular position he has been given because of it. there is no way to win, but walking away would be much worse. chairperson of the cbdt i think you mean the line of succession. 

president george w. bush

1 vice president / president of the senate dick cheney 
2 speaker of the house of representatives nancy pelosi (god help us!)
3 president pro tempore of the senate robert byrd 
4 secretary of state condoleezza rice 
5 secretary of the treasury henry paulson 
6 secretary of defense robert gates 
7 attorney general michael mukasey 
8 secretary of the interior dirk kempthorne 
9 secretary of agriculture ed schafer 
— secretary of commerce carlos gutierrez (non-natural)† 
— secretary of labor elaine chao (non-natural)† 
10 secretary of health and human services michael leavitt 
11 secretary of housing and urban development alphonso jackson 
12 secretary of transportation mary peters 
13 secretary of energy samuel bodman 
14 secretary of education margaret spellings 
15 secretary of veterans affairs james peake 
16 secretary of homeland security michael chertoff


non-natural office holders like elaine chao i guess would be passed over for the person below them.

the simple chain of command on the other hand is all the president's secretaries all answer to him or her directly. the secretary's people answer to them and so on.

the vp plays no formal leadership role while the president is alive and conscious though clearly our current vp is a pretty important advisor. seat ask espn.

eta: i can't stand mack brown. he reminds me too much of george bush. posture noo yawk be president sick