OKLAHOMA CITY (AP) — Thunder general manager Sam Presti took on a new look during the summer, just like the team he runs. The normally clean-shaven Presti returned from a summer trip with a neatly groomed beard. “I went to Vermont and let it go for a little bit, and then when I got back, nobody seemed to have a problem with it,” he said. “So I just kind of let it roll for a little while. I can…