The NHL is down to its final four teams in the Stanley Cup playoffs, which means 28 other organizations are already strategizing what their offseason will look like. With the league’s salary cap ceiling climbing from $95.5 million to $104 million, there won’t be as many teams navigating stressful cap situations this offseason compared to years past.The Tampa Bay Lightning, for example — a team famous for its cap gymnastics in the flat cap era — enters the summer with roughly $15 million in cap space and 21 of its 23 NHL roster spots already filled. They can pretty comfortably afford to re-sign breakout defender Darren Raddysh, their only critical pending free agent, to a new contract. Whether Tampa Bay should buy high on Raddysh after a career year is another matter, but the point is, they at least have the financial flexibility to consider that option if they desire.However, that doesn’t mean all clubs are clear of obstacles.There are still teams with significant raises for top players kicking in next year, along with other key unrestricted and restricted free agents who will demand more expensive contracts. The combination of those forces will leave a few organizations without the requisite cap space to bring everybody back.These aren’t desperate situations — we’re not talking about teams that are so strapped that they’ll have to move top-of-the-lineup pieces like the New York Islanders (Devon Toews), Minnesota Wild (Kevin Fiala) and New York Rangers (Pavel Buchnevich) had to do in the flat cap era — but the clubs in this article can’t afford to bring everyone back and will face some tough decisions.Here are seven teams with fascinating cap crunches worth monitoring, with cap data from PuckPedia and CapWages, and contract projections from AFP Analytics.Vegas Golden KnightsProjected cap space: $12.5 million (assuming Alex Pietrangelo ends up on season-ending LTIR next season)