For what it's worth, I was driving late at night a few weeks ago and stumbled across a sports program on the radio... they were talking with a "former scout" (don't know who it was) about "sleepers" in the draft and he mentioned Callahan. Said the kid had a live arm, great touch and anticipation... said he had a real chance to stick on an NFL roster. I found a clip of him on youtube, and he sure looked like he could fling a ball.
Anyone have any info on him?? Saw he was listed at 6'1, 215 lbs, and threw for a ton of yds and TDs at the lower levels.