The period between the Hawks’ last playoff game in 2008-09 and the first regular season game in 2009-10 keeps getting worse. Now Adam Burish is out six months with knee surgery tentatively scheduled for Friday. And Dustin Byfuglien has a groin injury that’ll keep him out a few days, as well. Dave Bolland is finally practicing with the team again after a long battle with back problems and Kris Versteeg might be back with the team by Wednesday after dealing with an upper body injury. Burish will be missed off the ice even more than he will be missed on it. He’s been a great teammate and a positive voice in the lockerroom. The Hawks need more players like that.