The NBA offseason has brought many changes to rosters, coaching staffs and the list of championship contenders. As we draw closer to opening night, it's time to move our focus from the potential impact of each offseason event and onto the broader issues that figure to define this season. The BDL 25 takes stock of, uh, 25 key storylines to get you up to speed on where the most fascinating teams, players and people stand on the brink of 2015-16. Eight of the 20 players pictured on the Philadelphia 76ers' official roster page are actually wearing Sixers uniforms. Four are wearing their former team's uniform, one guy is wearing a suit, and seven don't even have a photo on file. That's not exactly rare for most NBA teams, as they litter their roster with camp invitees who might not be long for this league. But it wouldn't be surprising to see the same sort of setup midseason with this squad — totally new names, old photos … or no photos at all. The 76ers haven't been photographable since general manager Sam Hinkie blew up the team on draft night, 2013. That night, he dealt Jrue Holiday, a former All-Star, for the sixth pick in that year's draft and what was certain to be a...