might need a 1st round pick in that trade to make it work, the pieces you have are good, but just not enough

If Kaprizov is included, it's more than enough.

This doesn't even guarantee an extension, but even so it is more than enough. Kaprisov is one of the best prospects not in the NHL and trading him alone would be nuts if there was no extension in place. And since he wants to go to Florida/NY/Chicago/LA that wouldn't happen regardless. The other 3 pieces may not be what Jarmo wants but he won't get much more value than that without an extension in place, and with that limited list im not sure why those teams would do that either.