While I don't disagree that our captain is sadly past his sell by date, I suspect that the real game changer last night was when Watford had to take Dennis off.
The international break certainly didn't do us any favours - Gruev and Gnonto probably both out for 3 weeks; no chance to train; having to play Firpo (who had a decent game, I thought) when he'd been playing on the other side of the world 2 days earlier; etc.