He does really well to get more from players than other managers would. I still think Spurs have the weakest set of players of the top 6...although they do have Kane and you wonder if they'd even be part of a top six without him...but still.
The problem is he's really almost Wenger levels of naïve in situations where the game plan isn't working, or against teams who are good enough to win without necessarily being the better side. It happens to them time and time again, and it's not so much that he reacts too late, as that he just seems to refuse to recognise or learn from it at all.
When they went to the Etihad, it wasn't just about reacting too late to City trouncing down their left flank, or constantly exposing them when they came forwards. It was the fact that the way they set up to just play the same as they always do in the first place was obviously a stupid idea.
He had a warning in the first leg of the Juventus tie about what happens if just ignore their strengths. They made changes last night, they were suddenly able to play the ball through Spurs...Spurs just carried on as if it wasn't a problem.
They have a way of playing and that's it. The best teams don't do this. Even City adjust...against United, they controlled most of the game, when United had spells of being more aggressive and playing through them, they dropped back and closed off space, then re-asserted themselves. Against Chelsea, they realised what Chelsea were up to so were more conservative with their passing. If it was Spurs Pochettino would have them just carry on regardless.
I don't think you can get away with this kind of management anymore if you want to actually win things. It worked for Wenger when there was just United to compete with, as all you needed was for it to work against United once every few years. Now there are five other teams you need it to work against all at the same time. You need to be willing to adapt against opponents who can hurt you. I don't think they've won a game away against a top six side and are still hit and miss at home.