Yates and Sims have made huge improvements in their Play since they came to GT
It seems to the untrained eye (Fans in general) that our OLs and DBs have slightly regressed in their time here, same for our TEs, if Saban were our HC the entire TE Depth Chart would be portaled or processed and Saban would go sign 4 TEs from HS and play the best 2.
If you're lifting weights for 12 straight months, running Sprints for 12 straight months, studying Film on your Position for 12 Straight months, it would seem to me that positions like TE, OL, DB would show better on Game Days.