I kind of like the idea of the 3 TE set. Forces the defenses to load up in the box, Engram and Smith can either block our run their routes and they slow down the pass rush with chips. Barkley can slip out the backfield too, and he and Engram will almost always beat a linebacker one on one.
With Slayton as the outside receiver, which on most weeks will require at least a safety over the top.
Or we can just pound it, especially outside runs where you can use Toilolo, Solder (yes he's been bad on pass protection but he's an athletic guy) and Thomas can pull and create huge running lanes for Barkley.