Callahan recruited how many QB's to Nebraska? How many of them made it in the NFL?
Callahan's expertise is with the OL but I think he had a reasonably good track record and ran a nice pro-style. He made hay with Zac Taylor and Ganz, but he only had four years here -- three with any QBs he could find on his own, and one with QBs not named Zac Taylor, about whom there can be no complaints whatsoever. He did OK stockpiling the position, and had he not been fired 2008 would have seen Ganz, Lee, Witt, and Gabbert...with another recruit for the next class who probably would not have been Cody Green. Though, Green was Watson's guy and he loved him.
It didn't really work out for them, but you could say this while they were here. It's no guarantee it will work out for Riley and Langsdorf, either. Watson was a pretty darn good coach of quarterbacks. I was disappointed and worried about the position when he left, so I'm very happy Langsdorf is here. But this is a case of getting back something we had before. Similar to the screen game, probably, also something Callahan did well.
The key difference maker is going to be personnel. Langsdorf has a very young QB room which may have a gem in there, we don't know yet. And with 2 QB recruits this class and 1 in every class thereafter (most likely), they will definitely be going after this position. Whether they take care of it better than Watson and Callahan in the past remains to be seen. Certainly they'll need to.