Midway through a frustrating 2020-21 season, Tucson Roadrunners coach Steve Potvin sat down with Barrett Hayton to show him what success looks like at the NHL center position. It wasn’t what Hayton was expecting. There were no highlight-reel sauce passes or breakaway goals followed by exuberant cellys. Much of the content featured deep-dive details and thankless drudgery. It was a…...