DETROIT — A new coaching staff, many new faces in the lineup, and expected progress from the holdovers who are a year older and more experienced. That’s the Red Wings as they prepare Thursday for the first practice of training camp, and it all blends into an outlook that is more promising than it’s been recently. In his state-of-the-team address Wednesday, general manager Steve Yzerman expressed optimism heading into training camp that this roster should be competitive. “We’ve made several changes; we signed some free agents in the offseason, with the idea it would improve our team,” Yzerman s…