Jeffrey Sonnenfeld sees the largest blunder of Roger Smith and Rich Wagoner at GM, as that of packing the Board of Directors with people who were friendly to him and likely to back him, so that few independent voices were heard during their entire time running GM. Both Smith and Wagoner were protected by staffers. Their opportunities to see and hear what was happening in the the outside world was limited, even as the world around them was changing rapidly. See the links to the incompetence of the Board at GM.