“Now you’re looking at a couple years of injury and weight gain,” an Eastern Conference GM said. “When you have a guy whose success weighs — no pun intended — so heavily on being an athlete, that’s worrisome. Everything he does has to do with him being three feet over the rim.” A second East GM echoed the concern that Williamson’s superiority is too reliant on his explosiveness, which is going to be hard to maintain at his size. “I figured he’d come in and make a big splash for six, seven years, but eventually his body would break down and that would be it,” the GM said. “He doesn’t have the skill level of a Charles Barkley or a Larry Johnson.”