Zett ain't comparable to what Grieg brings at all. Ridly is better without question.
Perron and Amadio both have cup winning experience, are making great contributions right now, are smart players, and developing very good chemistry with their respective linemates. We have been putting line combos through the meat grinder all year and now things are starting to stabilize at the most critical point of the season.
Zetterlund has scored 40 meaningless goals over the last 2 years getting minutes and opportunities he would not normally have on a playoff contending team. Hell, not even a contender, even one that's simply not a basement dweller.