Keeping the ISI or w/e they are called out of the loop was a great move, they are rotten to the core with Al-Qaeda/Taliban sympathizers. I bet they already blew several opportunities to get to Osama by asking pakistani intelligence for input.
Hard to credit a president for successfully killing Osama, but if I was to delegate tasks, I would have alot more confidence in team Obama's ability to deal with things in a cool-headed and composed manner than team Bush junior.
I have no clue whether the president gets to handpick people for intelligence positions though.