I'm weirded out a bit by the Rangers. They seem to want to rebuild but then , as a place a lot of UFA'S would want to go, they probably don't have to because the big stars will still want to sign there. I'm not sure they know what they want to do!
Seems pretty clear imo. If they wanted to spend money on UFAs they'd have kept Stepan, McDonagh, Miller, etc. Getting UFAs to want to come to you is just a fraction of the issue - the main problem with them is you almost always pay them for what they've done rather than what they're going to do for you. You'll get maybe 2-3 years of the play you're paying for on a UFA deal, then they'll fade and you'll have a bad contract, an anchor, an extremely expensive complementary player, etc.
They're "retooling" aka trying to rebuild over the course of 2-3 years. They have a lot of kids with NHL potential already stockpiled - Andersson, Chytil, Pionk, Gilmour, Ronning, Lindgren, Hajek, etc. And they have a ton of picks in the upcoming draft to add to that, as well as likely shipping out vets like Zuccarello, Spooner, Namestnikov, etc
I'd guess/assume they want to use as many of these kids as possible to make up the future core of the team, as they're cost controlled for as long as possible, and the league is getting younger and faster every year. Then they'll likely use their UFA attractiveness to fill out the roster around those homegrown players.