Personally I think Washington already missed their chance to win. They don't really change up what they do. They rush with 4 with an occasion blitz and hope that covers for their backs, which mix up a bit but play in zone mostly. They really can't do much different. If their DL doesn't win they can't really do anything else easily. Do they really want to take another guy out of coverage vs these WRs? No way.
The Bucs on the other hand can easily clean up and improve upon their offensive mistakes, which are in many ways just mental errors. They Bucs have no where to go but up and TWF has no where to go really, just keep chugging away and hoping what hasn't worked will suddenly work.
On the offensive side of TWF they need to scheme up a great opening drive or put in Smith at some point. The Bucs weren't sure who'd they play all week. Now they know and they have seen it. They will probably be more prepared to face it. Washington can improve as they made some errors but so can the Bucs.
Simply put, at this point all the Bucs need to do is score 7 more, take time off the clock, and not put their D in a bad position. TWF can't defend the run too well and they should leverage that to grind this game down unless TWF score on the opening drive. If TWF sells out to stop the run, punish them with play action. I don't see Washington scoring more than 24 at this point.