One of the factors that I believe will drive an “evolution’ at the QB position (i.e., more spread and/or wildcat functionality) is the proliferation of hybrid talent at the college level. No matter how you slice the pie, college is the feeder system of the NFL, and sooner or later the NFL needs to adjust to the college game – not the other way around. And if you’re an NFL personnel executive (including coaching staff) you need to find a system where you can actually plug in sufficient talent. Bottom line, if your offense is based on skill set (i.e., the classic drop back passer) that’s more and more rare – you’re going to find it harder and harder to operate that system.
For years we’ve watched the NFL be dominated by the few teams with high level “classic QB’s.” That formula is simply too narrow to stock the league with sufficient QB talent. Thus half the teams in the league (or more) are constantly scrambling trying to find one specific type of player – and if that guy’s not available you’re team is screwed.
With the proliferation of spread offenses etc. in college the simple answer is to ADAPT to the available talent and build a more open-ended system (less dependency on a skill set that’s more and more rare). And once that “formula” proves successful you can bet the league will move in that direction very quickly.
I think that’s why we’re seeing our coaching staff concentrate so much on getting guys with multiple talents so you don’t have to rely on one guy to make your whole team go. If a number of guys can pass and run – you better believe that spreads risk and adds complexity to the defensive aspect as well.