It's always fun to watch the isles flounder, but in the long run I think the short term success hurts their long term goals.
Lou brought in a bunch of aging, short term vets to prop up the team. Guys like Martin aren't going to his long term solutions. Lou is an all in guy, they may lose Lee for nothing (very doubtful), same with Eberle next year (possible).
Barzal is a gem, but I think the isles capitalized on a lot of flux in the East to get here. A lot of consistency, but I'm not sure I see potential to improve or sustain.