Okay, like many of you, I also had the passing problem in NCAA 08. Some people really believed it was due to the skill of the player. Which I always believed was total bull, I've played football games for years and I know when tap Y button it's supposed to lob the pass, not bullet it to the linebacker under my Tight end.
Well, I think I figured out the problem... It's the QB drop! Every since I fell in love with NFL 2k5, I really realized the importance of the drop. From then on, I would let the CPU handle the drop and then make the throw! All the last-gen football games worked great, even Madden 07 and NCAA 07 had good drop back mechanics.
As some of you might know, I got NCAA 08 about a week early, and to tell the truth the passing game ruined it for me. I got APF on release and haven't put NCAA 08 into my 360 until today.( Sorry for those who PMed who lived in NY, my internet was dead for about a week. ) I was messing around in pratice mode and was getting quite frustrated with the whole passing thing. Then I decided to start doing the drop manually, paused for a bit, then moved the direction stick while pressing the button of the receiver. To my suprise, the throw was very accurate, and played a couple of games and found my passing to improve.
One more thing though, I also dropped back 15-20 and completed alot of passes. I guess EA has kept noob football...