No one, not even a super rich “genius” can come in to a company, having done no due diligence, and within 2 weeks correctly and rapidly identify the over half of staff that are in fact redundant and not critical to operations. Add to that the cultural problems causing mass resignations, and even if you are 100% correct that it was over staffed, then it’s clear that this was not the correct way to handle it, and even the smallest modicum of common sense would clearly show that.