If Watson's hamstring issues are resolved and he can be healthy that will be a big deal - he scares defenses and makes it easier for the other receivers.

Dillon is not good running from shotgun. The mesh point is different and I suspect more effective for him if the QB is under center.
I will be curious to see if they use a real FB more. Jacobs also played well from power/gap schemes, and I wonder if we see more of it. McVay went more power/gap last year.