From what he’s written and what I’ve heard of his thinking and tactics he comes across as a young , intelligent manager. Very , very few managers make it without being sacked at least once , usually when they are young and inexperienced. Let him develop elsewhere for a few more years , he’s not ready yet , one day he will be . Then the question will be are we ready for him, at the moment we’ve managed to go through a whole series of experienced managers without any notable change.
Hiring experienced managers has put us in this mess. Bring in someone unproven and let them prove themselves. Someone who wants to better themselves is what we need, not someone here for a pay day late in their career.