As the NHL season heats up, coaches are being put to the test. In a rankings list that's sure to spark debate among hockey fans, Yahoo Sports kicks off its annual NHL Coach Rankings with the New York Islanders' Peter DeBoer taking the top spot. DeBoer has been making waves on Long Island, leading the team to a surprising playoff run last season. With his ability to adapt to a young roster and make key adjustments on the fly, DeBoer has proven himself as one of the league's top tacticians. But will he hold onto the top spot as the rankings continue, or will other coaches make their move?

NHL Coach Rankings: Islanders' Peter DeBoer Kicks Off The Top 10  Yahoo Sports