The biggest concern is really just the Oline gelling and we won't even really know who is playing where for a while. WRs switch in an out and getting timing down with a QB can take a bit, but I think that's minimized with good communication and putting in the time. I'd expect the OL to get their act together sometime around week 5 as far as actually acting like a cohesive unit. Preseason is great, but as we've seen before, we don't always do the best job at picking the right starters.