Well, it sounds serious and it always sucks to lose a player like Lee.
Let's hope for the best-case scenario, which is that the injury is more of a severe sprain than any type of full tear and Lee can return for the playoffs.
If that is the case, then the Isles can add a significant player via trade and then welcome Lee back at some point in the playoffs.
Lou now has to make a call on adding a rental, and hopefully giving up minimal assets, or deciding if he wants to try and add a core piece (a youngish player with term) and then figure out the cap situation in the off season.
If Lee can potentially get back for the playoffs, one name to keep in mind is Ryan Getzlaf - if he is willing to be traded from Anaheim for a playoff run.
Getzlaf's counting stats have clearly been declining, but he is still an even-strength possession monster, adds depth down the middle and can take important faceoffs.
Of course any potential deal would be dependent on Getzlaf opting to waive his NMC and ask for a trade. Anaheim would have to retain the $$$ difference for cap purposes, and he would have to play on the wing with the Isles.
I guess Kyle Palmieri is another option but, wow, he is having a dog sh!t season. I wouldn't want to pay the premium, for past numbers, and division tax that the NJ Devils will probably be looking for.
It would have to be less than a first rounder, which I assume they will get from a team, I just don't necessarily want it to be the Isles.