The Ottawa Senators have a lot of players. Currently they have 12 forwards on one-way deals plus Jakob Silfverberg being almost a lock to make the Ottawa team. In addition, Mika Zibanejad and Mark Stone are also contending to make the team. A similar situation played out on defence last year with the Senators having six defencemen on one-way deals plus David Rundblad and Jared Cowen. Matt Carkner was injured, but once he neared a return, the Senators traded Rundblad.
Should Zibanejad (or Stone for that matter) have an excellent camp, the Senators might have to make room for him. Paul MacLean seemed reluctant to let him leave Ottawa last season, and I feel he's probably going to stick around in the NHL this season under MacLean's guidance.