The Boston Bruins are preparing to play the Detroit Red Wings on Friday and we've already learned that Jake DeBrusk is out.� With back to back games on tap for the Bruins, head coach Bruce Cassidy has decided to make some lineup changes and mostly on defense.� Charlie McAvoy is no longer with Zdeno Chara as he's now been paired up with Matt Grzelcyk. Chara found Connor Clifton on his side on the team's first pairing.� Take a look at what Cassidy put together at practice today: Marchand - Bergeron - Pastrnak Cehlarik - Krejci - Heinen Bjork - Coyle - Senyshyn Wagner - Kuraly - Ritchie Nordstrom - Lindholm Chara - Clifton Krug - Carlo Grzelcyk - McAvoy Kampfer - Miller