1. I'd stay stick with TH to open the game, but Willis is heading in the right direction, so I'd use him for a change-of-pace, since he and TH have two different running styles. Doing so could, IMO, slow the DL & LBs and force a more conservative D game plan from our opponents. Straight ahead power and a slashing cut-back runner being rotated could help open some running lanes.
2. Arbitrarily throwing to Evans? I know you don't mean that DB should throw his way if he's doubled, or just plain not getting separation. But has he been? I dunno', that's what sucks about watching the game on TV, you can only see what they show you, and you never see the big picture (ie, seeing man vs zone, whether the safeties are cheating to one side or up at the line, etc). But I'm hoping they find a way to get the ball in his hands more often, which I believe is what you meant
3. I'd open up the playbook for playcalling. The 3rd and long run that Willis had for a first was a ballsy call, and one that, had it not worked, would have forced some here to go on suicide watch. I'm glad it worked out, but I'd spread the field a bit and then start slamming a healthy dose of TH and WM. And every time they cheat and crowd the line, I'd go upstairs. 'Course, all that's easier said than done.