Shayne Gostisbehere didn’t go very far this summer. He spent most of the offseason in Philadelphia and spent his days at the Flyers’ Voorhees practice facility where he saw plenty of prospects. There are spaces up for grabs this season and the young guns have been trying to impress by spending extra time in the weight room and on the ice. “It’s good to talk about how we have the best prospects, but it’s another thing to go out there and show that we have the best prospects,” the 24-year-old defenseman said. “I think that’s what we’re going to do. These kids are great. I’ve been working out with most of them all summer. They’re ready. They’re focused. They know what’s at stake here — it’s an NHL job.” Several, actually. With the departure of Michael Del Zotto and Nick Schultz on the blue line, the Flyers have a pair of openings on defense. General manager Ron Hextall hopes to fill them with a combination of draftees Samuel Morin, Robert Hagg and Travis Sanheim as well as undrafted free agent Phil Myers. Just in case, the team plans on having a veteran in training camp on a pro tryout. On offense, the team lucked out in the draft lottery moving up from No. 13 to No. 2 and selected Nolan Patrick. The center, who turns 19 next month, might have the talent to force himself into the team’s immediate plans. Left winger Oskar Lindblom, who was among the scoring leaders in Sweden’s top league last season, may also earn a spot as a rookie.