Open Extended ReactionsMike Sullivan, who led the Pittsburgh Penguins to back-to-back Stanley Cups in 2016 and 2017, is out as the team's head coach, it was announced Monday. Sullivan was the longest-tenured coach in Penguins history after just completing his 10th season. Sullivan was elevated to Penguins head coach in 2015 after leading the organization's AHL team in Wilkes-Barre. Sources also said Sullivan is keen on coaching again next season and will be a top candidate for several of the vacancies. Sullivan worked as an assistant coach with the Rangers and as both an assistant and head coach with the Bruins earlier in his career.