His reasons for going are multi-faceted. As an aging man, his body didn’t recover from the stress of the job as it once had. His body didn’t have the stamina it once had. His ability to get quality assistants had become an issue because of his age. Guys, potential assistants and players wanted assurances he was going to be there 3-4 years down the road. Large numbers of players were no longer buying into his Process and were all about ME and $$$ and it was obviously getting harder to get some of the more elite talent to buy in and do what he wanted them to within the TEAM concept because they all wanted theirs and they wanted it now. Now how much each of these particular things contributed to the decision that was made, is anyone’s guess. Personally, I feel like the hiring of assistants was the proverbial straw on the camel’s back. Everything I’ve read says he was undecided until the very last moment before he went into that room. And what was he doing just before that, he was interviewing for assistants. I have zero inside knowledge, but I have a sneaking suspicion that he had been asked more than once in interviews if he was going to be there down the road because they didn’t want to leave comfort if they might have to find a new job pretty soon.