Most managers only have one plan. When things go south, they stick to it until the results are back. That's what Klopp's (the media darling) been doing at Dortmund and Liverpool. Same goes for Wenger or even Pochettino, for that matter. They have one receipe for success and they keep doing the same things over and over again, until somehow, they get back to winning ways.
At least, Mourinho tried a lot of different things to solve our problems at the back. He should be credited for that, even if, at the end of the day, it didn't work.
As for his comments on the press, I disagree with the majority: you should be allowed to speak your mind. People getting upset because the manager actually has something to say, instead of the tepid comments you hear all year long, is a sign of times, in my opinion. If you think a manager's job is to spew nonesense like 'we're taking it one game at time' and 'we respect everyone but we're afraid of no-one' or 'we played well but they were better on the day' all year long, fair enough. Me, I think it's the worst kind of flimflam and I'm willing to side with anyone who has the guts to try something different, no matter how biased his arguments are (aren't they all?).