I get that to a degree, but by the time the team's ready to compete there's every chance Coleman, who plays a pretty intense game, will start showing wear and tear. If he's here on a big contract it'd also potentially limit what the team can do to build around him and the current kids on the roster.
And in the meantime, if we don't stock up on high picks now, where's the team really going to be in a few years, anyway? It's possible that with the strong draft last year and their current cap space they could ice a pretty good team, but the odds of building a real contender are much lower with that strategy, even if the short term future will sting a bit less. It's very, very tough to build a perennial winner if you don't have a strong prospect pipeline, and the Devils simply haven't had one in a long time, and can't put a bandaid over that fact anymore. I'd have loved for Coleman to be here next time the team is good, but if trading him can speed up the replenishment of the system and thus the overall rebuild, so be it.