If TSSAA size classifications and strength of schedule are a factor in evaluating high-school talent, then there are a lot of players that should have never set foot in the locker room of any D1/BCS university.
Seymour Eagles, Seymour Tennessee is a good example. They have not been very good since losing their head coach of 30+ years, Gary Householder, to retirement, but that wasn't always true.
Example:
In the 90's, Seymour was definitely one of the state's more successful programs regarding consistency region titles, and play-off appearances. They were regarded as a lower/middle class team, so there competition was not that of a 5A or a current 6A school.
They have sent a few players to colleges, but only a couple to BCS level schools and only one who earned his success as a Vol and eventual NFL talent.
Had the 'terrible schedule competition/small school talent' logic been applied, the University of Tennessee would have never seen LB Scott Galyon on it's roster.
A couple other local talents who would have fallen victim to this logic are; Jermaine Copeland of Harriman, Dennis Rogan of Fulton, Chad Pennington of Webb (Marshal), Todd Kelly II of Webb (UT commit), etc...
I am sure you can think of a few yourself and see why this logic is completely & dependably flawed.