Matthew Syed has written an article comparing Jose to Donald Trump and makes reference to this quote.
In essence he argues that both Trump and Jose can be great people to be around when things are going well but when things are going less well their vanity prevents them from looking at themselves and instead they start looking for scapegoats.
In reference to your quote above Syed says "After Sunday’s defeat he turned on his dressing room in particularly savage fashion. They are a superb squad, on whom Mourinho has lavished tens of millions of pounds, and yet he claims that they exhibit endemic problems of a quite ruinous kind. “For a long, long, long, long time we have problems in the team that I cannot resolve by myself as a coach,” he said. In other words, anything that is bad about Spurs predated my arrival. And, by implication, anything good that happens now is solely attributable to my genius."
Syed goes on to say:
"In this sense, he is a rather tragic figure, moving from club to club, living on past glories, hoping that the next chairman will forget that his main source of income these days comes from payoffs for contract termination (now running into tens of millions of pounds). The Special One has become The Severance One.
I suspect that the Spurs players, many of whom are excellent professionals, will keep battling for the club. It would be extraordinary if their form did not recover in the coming weeks. But the medium-term risk is that key players such as Harry Kane and Son Heung-min will seek to escape from a head coach who is holding yet another club back. This would be immensely damaging to Spurs, forcing them into another costly rebuild, although hopefully under a more enlightened manager, such as Leicester City’s Brendan Rodgers."