The Florida Panthers are coming off the most successful regular season in their history, but that wasn't good enough for them.
After losing in the Eastern Conference First Round in six games to the New York Islanders, the Panthers decided to revamp their defense with an overhaul rarely seen by a team that had 103 points.
Keith Yandle, Jason Demers and Mark Pysyk arrived in the offseason in trades and free agency. Four of the six defensemen who played in the Panthers' 2015-16 season opener -- Brian Campbell, Dmitry Kulikov, Erik Gudbranson and Willie Mitchell -- are gone.