The hatred for Wilder aside, there is actually something in what he is alluding to.
I've never understood how the Watford model could yield long term success. He talks about 20 individuals and them not being a team, how could they be when they change managers so frequently, and presumably with each change comes a change of style, formation, tactics etc.
The players must get to the point where they don't give a stuff about what the manager is trying to achieve, they know he'll be gone soon and it will be all change.
I'm no Wilder fan, but there have been better managers than him sacked by Watford, some good Managers too, and with each sacking, being sacked by them becomes less relevant to a manager's CV.
No, Wilder is an irrelevance to me, it's the Watford ownership and the Watford model that I really dislike.