Of the core 4 I probably have the most affinity to Nylander (if I'm Nylander I'm pissed I get lumped in with guys making almost twice my salary), but I watched the last Vegas Florida game just to see what's up and I've realized this core is just straight not made for the playoffs. Seriously none of them are true "playoff performers" Matthews doesn't have a second "world class player" gear he can tap into. Marner.... He's just not that guy in the playoffs, dumb mistakes, kinda gives me lil b**** vibes. JT is past his prime and ineffective most shifts, also no second gear, no drive, no playoff warrior in him. Nylander has 0 nastiness to his game and leaves a ton to be desired on defense. Nylander should be finishing his hits aka Matthews given he's a big strong man, but you see maybe one decent hit every series.
When your playoff leaders are these guys you're going nowhere fast. Six years of playoff woes and this is the learnings they have to show for it? If Matthews doesn't sign at a reasonable price I think you have to start looking at a major retool at minimum and full on rebuild as a worst case scenario.