I feel that some fans are missing the point with Docherty....
I actually think that Jose bought him as a RWB and not a RB, this is what caught the eye when he played for Wolves after all...but because of our issues at the back, he has been used at RB, mainly to give Aurier a rest now and then.
I agree that Docherty is a poor RB, that seems clear every time he plays, but I would give him until next season and see if we can get him playing in the RWB position more....I think that an improved defence (especially our FBs) would give him the chance to add to our attack more often as a RWB in a 3421 or a 352 formation.
Basically, it's too early and too short-sighted to just sell him on, it would be wiser to get our defence sorted and then see what he can offer us...if he fails at RWB, then we should say goodbye, but I just don't think that we've seen him in his best position yet.