Cutler, Young and Leinart.
I think Cutler is more of the product of bad coaching right now. I think Shanny is a good coach, but he was thrown to the wolves a little earlier than he probably should have been. Then he got traded to Chicago. Ron Turner's offense sucks. Now they have Martz, which doesn't exactly protect the QB. He needed more of a Tony Romo type plan of development....sit him for 1-2 years, protect him and have him focus on protecting the ball. Then unleash him. Instead it was start him as a rookie and unleash him in year two and neglect the focus on protecting the ball. I watched a lot of Bears games last year and he pretty much kept them in games and lost games for them. On one hand his O-Line stunk and he had to make incredible off balance throws. OTOH, he would tend to make those throws when the protection was there and throw interceptions.
Young has less upside as a QB IMO because he's never going to be an elite passer of the ball. But he should be able to protect the ball and help with the run. He does have a good winning percentage. Getting to the SB is a big question for me though.
Leinart's mechanics were really poor going to the NFL. I remember back in '07 I had a friend of mine living in Phoenix who has TiVo and he recorded pretty much all of the Arizona games so I got to see him when looking at Leonard Davis. Davis got skewered by the media for sacks allowed, but when I looked at the games, I could clearly tell that most of those were QB error as Leinart's footwork pocket presence were very poor. I think he piqued in life in college and just never really understood how to continue that pique into the NFL.
3JACK