We'll have to see how it plays out, but I think Gay ends up being depth, and Werner starts if/when healthy. He's one of our best players when he's out on the field.
I think we'll see more 3 LB sets when down/distance call for it and I think we'll see more of a 3 man rotation keeping all 3 guys fresh. You may have Werner/Davis as the "named" starters but I also bet all 3 get significant playing time.