If anybody harbours some genuine doubts about how much of his general stubbornness can be attributed to unwillingness, instead of simple inability, then this match was a good evidence for the latter. Like some limited players we have, he’s just a limited manager who is trying to play to his supposed strengths. When he actually tries to do something different, he looks even worse than he'd have looked had he stuck with his usual approach. This was the most disorganized and chaotic 3 at the back I’ve ever seen, it’s clear he has never put much thought into it. Who asks his RCB to constantly push to midfield and leave an entire side of the pitch wide open? What was he thinking?
No, he’s not trying to establish strong foundations that he or his successor will build upon. He doesn’t have anything else up his sleeve. He just has a bunch of intuitively appealing but very surface level ideals about the game, nothing more. He might have been fine as an eccentric assistant under a proper manager, but that’d be his ceiling at this level.