Gordon is 31 and only signed to one more year. I also think this deal needs to be looked at from a wider team perspective. Letestu is a fourth line centre making fourth line dollars. Gordon was simply a threat not to get scored against. At $3 M a season, we should be expecting at least some offensive return.
We'll have to wait and see on this one, but I think that it's a reasonable bet that Korpikoski can play effectively on the third line on the wing, as we know what kind of talent he has, and he clearly needed a change of scenery from Arizona. The trade should benefit him, particularly playing along side some decent talent on the third line. It's a reasonable gamble imo, and if a younger player shows more on the LW, then he can be buried in the minors, and the team is still ahead salary wise.
Lots of reasons to be budget aware, future UFA signings, trades for big name players. Tying up the young stars that you have to long term deals. The fact is that this team is taking strides to move forward on multiple fronts.