Landlord
Banned
The top talent wants to play in that type of a system in order to be ready for the NFL. As well, the way to beat Bama, Clemson, etc. is to have a GREAT quarterback that can drop back and throw dimes across the field to streaking receivers or pitch it to the all-world back that can take it to the house.
I went and looked at all of Alabama's losses since 2011:
'11 LSU - dual threat
'12 A&M - dual threat
'13 Auburn - dual threat
'13 Oklahoma - dual threat
'14 Ole Miss - drop back
'14 Ohio State - Cardale wasn't a true dual threat but he was used in the running game a lot in crucial design
'15 Ole Miss - Chad Kelly seemed like he had some decent mobility but the scheme was more pro style
'16 Clemson - dual threat
'17 Auburn - Stidham isn't really dual threat but he got 1/3 of his season's rushing yards in that game
'18 Clemson - pro style