The Islanders are largely an aging group, so it will be interesting to see if Roy's presence on Long Island is the start of something much bigger, such as a top to bottom rebuild. At this point, the Islanders are 19-15-11 on the season, so it will be interesting to see whether they become sellers at this year's trade deadline.
Roy last coached in the NHL in 2015-16, when he was behind the bench in Colorado. The NHL legend coached 3 NHL seasons with the Avs, leading them to the playoffs in his first season behind the bench in 2013-14, but missed the playoffs in his next two seasons.
Roy left the NHL in 2016, taking a couple of years off before returning as a head coach in the QMJHL, ultimately leading Quebec Remparts to a QMJHL championship last season. Huge add for the Islanders.