I don't see cap hell for them, they basically have a full roster and no real big free agents to worry about. Backstrom's $6m comes off the cap next year and Heatley's $7.5m the year after.
Pierre-Marc Bouchard is $4m of LTIR waiting to happen.
As for your previous comment that they got the wrong players, I might be inclined to agree but frankly the right kind of players just don't hit free agency all that often and there weren't any of them this year. Sure they could use Chara and Weber more than Suter, and sure they could use Kopitar or Kesler better than Parise but they can use Suter and Parise a hell of a lot more than they could use Kurtis Foster and .. Andrei Kostitsyn? Who else is left?
The Wilds indeed have a very good first line. However, unless that midget Bouchard is healthy, they still do not have a second line center. As for their defense, who do they have after Suter? Gilbert? Stoner? Spurgeon?? Their problem last season was lack of depth. I am not sure they did address their problem.