The damage started under CRB, who was clueless about leadership and running a company. However the real deep and lasting damage was inflicted by BK. He is resposible for the loss of technical leadership while head of TMG. The 10nm trainwreck all points toward BK. Then as CEO his misguided policies completely destroyed the cultural fabric of the company.
@gas+1dYRtnDy makes an excellent point. I reposted it into a thread because it really needed to be on top.