If Rex is still the head coach I doubt Smith will be brought here. They have very different defensive philosophies.
Yes and no. Rex likes to be "multiple" in his looks. I know Lovie pretty much runs a strict Tampa 2 but I think there is some common ground there. Both are good defensive minds, I think Lovie would have a positive effect on Rex.
Promote from within. The D is our strongest asset, and we all know who is really in charge of that unit.
Focus on the offensive side of the ball. New coaching staff for QB and OC from a team like NO, ATL or a proven offensive mind -- maybe Jason ggarrett? Sanchez will be back. It makes sense to see what he can do with some real offensive coaches and, hopefully, some talent around him.