Development thing on OL is overblown. Individually guys like Hall, Jones, Thomas when healthy, Weisman, Kerybson, Kendrick, Boulware have all improved. Richmond got better as year went. Robertson one of the few to regress on OL. The biggest issue early this year was Thomas was hurt, went from gap to zone blocking, rb that didn't know how to run zone, lineup inconsistency all camp. Once settled on a lineup and it became the Kamara/Kelly show the OL magically looked great as a unit.
Debord is one of the better OL coaches available and will be able to work full time with that unit next year. Smith will be just fine in this program