UNIONDALE, NEW YORK - JUNE 19: Matt Martin #17 of the New York Islanders celebrates after scoring against the Tampa Bay Lightning during the second period in Game Four of the Stanley Cup Semifinals during the 2021 Stanley Cup Playoffs at Nassau Coliseum on June 19, 2021 in Uniondale, New York. (Photo by Rich Graessle/Getty Images)
For 90% of the teams in the league, teams use their fourth line around seven minutes a night essentially to give their top-nine a rest and maybe sometimes to kill penalties. Well, the New York Islanders for years have gone about it a completely different way.