Actually it is you who is wrong.
They lacked the capacity to implement what their coaches where teaching, both Losman and Manual were amply strong, they just couldn’t learn how to do it correctly, hence cognitive talent...
Brains my friend brains, it’s the thing that controls the muscles... Allen used his brain to control his musculature, and lifted himself out of the big strong guy with limited capacity category, it’s that simple. And because of that cognitive talent Allen is now considered a top three QB in the league.
Go Bills!!!