One thing to keep in mind when putting together a roster for next season is the yet to be finalized expansion draft that will happen.
Current assumption to you can protect 7 forwards, 3D and one goalie and that NMC clauses have to be respected. Anyone with 2 or fewer professional years at the conclusion of next season is exempt. Professional includes AHL. So guys like Griffith and Subban, etc would have to be protected or exposed, but guys like Grzelcyk, even though they are from the same draft class, would not be.
So before you start throwing out D lineups for next year featuring Chara, Yandle, Shatty, and Krug, or whatever realize that you can only protect 3, and Chara has to be one of them.