With the pressure the defense puts on the oline, I think it's only natural to run screens to the running back. Also, how many times he's going to run the ball out of the 3 tight end set? How many times he's going to declare his runs/passes based on his personel grouping? Again, no mirror plays at all.
You cant run screens effectively with OL that lack athletism like Fulton (Who has issues on the 2nd level.) and Davenport. Plus Kelemete has these issues also just not as bad as Fulton.
They are running 3 TE sets probably to help the OL because the OL cant block 5 on 4 much less 5 on 5. Sad part is they keep Griffin into help the OT's and often he whiffs too. In short the pass pro is a mess and has been all season.