TAMPA — Stanley Cup or not, Jon Cooper isn’t going anywhere. The Lightning signed Cooper to a multi-year extension on Tuesday.Cooper celebrated his 300th win and 500th game on Thursday in Carolina. He’s the winningest coach in Lightning history and the longest-tenured in the NHL at six years and a day.“I am very pleased to announce Jon’s extension today,” Julien BriseBois said in a statement from the team. “His ability to forge impactful relationships with everyone from players to staff has been a trademark of his tenure with the organization and he is the absolute best coach for our hockey team. Coop’s ability to develop a strong culture while continually adapting has been a big part of the team’s success. He has helped set high standards for our organization with his unrelenting drive for excellence. I would like to thank Coop and his family for their continuous commitment to the organization, as well as to the Tampa Bay community, and I look forward to working in partnership with Jon for years to come.”Cooper has a 301-157-44 record with the Lightning. In his (parts of) seven seasons, Tampa Bay has finished in the conference final twice, made the Stanley Cup final once, lost in the first round, and missed the playoffs twice. Check back for more details.