I don't see paying Foligno more than Staal(3.25M) is getting, that's for sure. If he keeps the AAV under 3M, then he will get 4 years, though 3 would be ideal. The style of game he plays makes for a lot of wear and tear on the body. Sooner or later we will need someone on the team who fights besides him. Hartman can drop them, but has no business fighting heavyweights. If he wants more, then you thank him for his service, and move on. It's not like he has been part of a huge success story here.
Greenway needs to be more consistent, bit any criticism that comes from the Fenton regime I take with a grain of salt. An engaged Greenway adds something to this team that we really need, and allows us to pick smaller, skilled players if we need to. During the regular season, his body in front of the net led to a few goals, even though he didn't get credit. It's like having a small house in front of a goalie. Bottom line is that we need to encourage him to be better, and teach him how to be better. Foligno can help him with being tough, but i don't know who can help him with the skill part as a big man...Staal? Next year will be telling for Greenway.
Kunin made progress this year. Not an exciting player, as his tools are average, but smart, and feisty. I think he will be a regular 20 goal scorer, as long as he gets #2PP TOI. It might not be a stupid idea to lock him up at 3.75M for 6 years, or something like that. Don't know if he would do it, but you would be paying for his prime years. To me, he has less tools than Coyle, Nino, Zucker, or Granlund had, but might have the most consistent game of the lot. Again, if he wants more, then you ride out the RFA process.
JEE is the most important of the bunch, even as an unexciting 3C. He is the one guy you try to sign long term, and you don't let go of, unless we somehow get our hands on a bunch more C's.