First, I've said before that TAMU was not an untalented team on offense. They had a huge question mark at QB entering the season but I figured the system was conducive to getting winnable QB play. Kinda like the difference between 2008 Chris Todd and 2009 Chris Todd for Auburn. He wasn't great but that system made him decent enough to lead a bowl eligible team.
Mike Sherman didn't get fired for poor talent identification. He got fired for game management. TAMU was a 8 or 9 win team that couldn't manage a lead in several games. Tannehill need to be reeled in some and they would let him bumble the game away several times.
This was basically the 2011 Aggies with a different coach and quarterback. I think those two factors made all the difference for them. With that said, they're losing a lot of talent this offseason and it may be hard for them to meet their current expectations.