Tanev if he's not with the moose. If not him, then Petan with his laughably low shot %. He's not good enough to slot anywhere into the top 9, except maybe at 3C but someone is gonna have to show me some stats showing that he can be good there defensively before i'd be willing to put him there over Lowry, and Mo is probably gonna put Matthias in the lineup over Petan, which i personally don't have a problem with because Matthias can actually produce some kind of offense without the man advantage and put the puck in the net at a rate higher than Petan's 1.8%.
I think Petan needs to be traded, unfortunately. I believe Roslovic will succeed at the 3C spot before Petan does, and there's no space for him on the wings on this team.
Edit: You know what, Put Petan on the moose and just have him be the first call-up so he's not wasting away in the press box.