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2nd C will probably come from the draft in the form of Savioe, Wright or Cooley. For the RD I'd get Subban on a 2 year deal.

Have to give up assets or retain salary for all of them, except maybe Hoffman and Drouin. In their case you need to take back salary

Petry, Drouin and Hoffman can all go. Keep Lehky on the LW and keep Anderson on the RW. Fill in Pezzetta on LW and bring up Belpedo, Brook or Niku instead of Subban.
Let the young guys play!

So you're trading Savard and then need a 2RD? Great right defenders are going for a kings ransom so even doe he's not great I'd keep Savard over spending top dollars -or assets- to get a replacement. You could go get Jiricek or Nemec in the first round this year but Savard would still be needed at the least another full year.
Center I'd look at Dallas to go get one, most spots are taken for a little while and they have Johnston, Dellandrea, Stankoven and Bourque as upcoming rookies, pretty sure we'd get a rebate on Dellandrea considering he's burried behind so much depth at the position, he's not the newest toy and for Montreal he's also pretty much NHL ready. He may not be a top 6 center yet but there's no reason not to use Dvorak on the second line and slot in Dellandrea on your third. Don't know what it would cost but it'd be interesting to call Dallas to check.

At least one response that make sense