Basically I see this is a a move to free COL of a bad contract ...
Why would PIT do this deal though? Sodenberg is a HUGE question mark as he played in 80 games last year and couldn't crack the top 10 in scoring on the worst team in the league. He's 31 and under contract for 3 more potentially terrible years. Retaining the max, half his salary is still a huge gamble ... Grimaldi is a 24 year old midget (5-6) who hasn't cracked FLA or COL line up, which means ZERO chance of playing in PIT's and we don't need AHL scoring ... and a 3rd which doesn't help seek a 3rd cup in 3 years.

You're not offering anything enticing enough to make PIT to want to absorb that contract. We'd need 2nd rder and a very solid prospect that is projected to play in the NHL in the next year or 2 in addition to Soderberg ... otherwise they'd just keep the 23yr dman who they've just won back to back cups with and go after a 3C elsewhere, that are younger, cheaper, and less of a risk.

Nobody wants Soderberg's contract's years or price. COL is gonna have to eat that for the next 3 years. You're better off trading Duchene for Maata and hope C Wilson can play 2nd line center. Or Jost. Or Compher.