Don't blame the drop rate on Matt Stafford's inaccuracy. The guy had these issues at Georgia, this is not something new. If Calvin Johnson was replaced with a WR of average to decent talent, his numbers would be MUCH worse. I cannot count how many times Calvin has bailed this dude out when Stafford launches the ball 90 feet over his head.
"Negatives: Can get fundamentally lazy... ... Though he has an efficient overall release, should be able to speed it up for underneath screens passes to take better advantage of the surprise to the defense. ... Sloppy footwork. ... Will get lazy and throw off his back foot, which could lead to turnovers in the NFL... ... Willing to throw into tight spots, though more often than not he places the ball where it needs to be... ... Not great accuracy on crossing routes. ... Too often leads his receivers too far or forces them to reach back, slowing their momentum and limiting their ability to generate yardage after the catch."
Thats depressing. Sad you can use the exact same report for him as a college player and as a pro with 5 years in the league.