The single most important job for our new head coach is getting the most out of Matthew Stafford and making him a better quarterback.
So I decided to take a quick statistical look at all of the QBs who started under Jim Caldwell through his NFL career, from his time as the QB coach for Tampa Bay, QB coach and head coach at Indy, and QB coach and offensive coordinator at Baltimore. Then, compare their performance these seasons to how these QBs played when the were not playing for Jim Caldwell.
I used passer rating for the comparison. Stats from profootballreference.com.
(click for larger image)
The results are mixed:
Peyton Manning played better under Caldwell than the rest of his career.
Joe Flacco: worse, by about the same margin.
The one year Brad Johnson played for Caldwell was slightly worse than his career average.
The portion of 2011 Dan Orlovsky played under Caldwell he played better than the rest of his career.
Kerry Collins: worse, but it was his last 3 games before retirement.
Curtis Painter: much better, but, like Collins, the sample set to compare to is tiny.
Note: not including Tyrod Taylor who had 1 career passing attempt that was not under Jim Caldwell.
Overall...meh. It's a mixed bag. I just don't see how the Caldwell hire gives much to be excited about, but we'll see what happens...