Jeremy Colliton runs intense practices. Heavy respiratory and sweat-dripping brows are frequent sights within the Blackhawks’ locker room. But for brand spanking new Hawks defenseman Calvin de Haan, who truly performed alongside Colliton within the AHL eight years in the past, lots of the strenuous elements appear oddly acquainted. “It’s funny because there’s a couple drills that we’ve done throughout training camp and practice that I’ve seen a few times before,” de Haan mentioned Thursday, chuckling. “I’ve kind of called him out on that.” The veteran blueliner finds himself in a scenario few NHL gamers have ever skilled: being coached by a former teammate. As a rookie within the Islanders group in 2011-12, de Haan