Doucs being injured feels like an opportunity for others to step up (even though they never have before).
For me I would tell Davies to show that he is a box-to-box player as this is what he wants to be, and what Doucs is. If he can't do it against Watford then he never will. Iwobi just refuses to perform so has to be dropped. Dobbin to replace Rondon just because Rondon offers us nothing going forward while Dobbin should get a chance, again against a really poor opposition.
Pickford
Coleman, Godfrey, Mina, Digne,
Townsend, Davies, Allan, Gordon
Gray
Dobbin (fit and knows where the net is, unlike Rondon)