But that does not make sense though Bill. You cannot make a claim about a time period and the culture of the club within that period where the current players are only relevant for a small part of it.
I think it is much more likely he exploded in complete frustration about the situation he found himself in. Because of his arrogance blamed everyone else. Then decided when he calmed down that he needed to be a bit more careful with his words.
A fuller excerpt from the press conference is below (with the '20 year' comment highlighted). Hard to be 100% certain due to English not being his first language, but personally I think it's pretty clear that he was criticising the players, not the club/chairman/owners.
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'The club has the responsibility for the transfer market, every coach that stayed here has the responsibility. And the players? The players? Where are the players? In my experience, I can tell you that if you want to be competitive, if you want to fight, you have to improve this aspect. And this aspect, I can tell you, in this moment is really, really low. And I see only 11 players that play for themselves.
But does your future, the uncertainty....
You are finding an alibi, another alibi. You try to find an excuse for the players. OK, continue to do this, to find an excuse for the players. You do only this! You do only this. Excuses for the players. 'But the players, maybe, my future, then we lost confidence, they lost spirit, they lost being a team'. Excuses. Excuses. Excuse. Try to protect them every time.
Bah. Come on, come on, come on. We are professional. The club pay us a lot of money. The players receive money, me receive money, you understand? Not to find excuse or not show spirit or show a sense of belonging or don't show a sense of responsibility because we are showing this. For me this is unacceptable because for me this is the first time in my career to see a situation like this. Until now I wasn't able to change, not to change but compare to last season the situation went to become worse.
Why is it happening?
Why? Because they are used to it here, they are used to it. They don't play for something important yeah. They don't want to play under pressure, they don't want to play under stress. It is easy in this way. Tottenham's story is this.
20 years there is the owner and they never won something but why? The fault is only for the club, or for every manager that stay here? I have seen the managers that Tottenham had on the bench. You risk to disrupt the figure of the manager and to protect the other situation in every moment.
[...]
I’m really upset and everyone has to take their responsibility.
Not only the club, the manager and the staff. The players have to be involved in this situation because it is time to change this situation if Tottenham want to change. If they want to continue in this way, they can change the manager, a lot of managers, but the situation cannot change.'