Forgot Korey Lee has been rehabbing as well.
Unfortunately, unless they deal Thaiss to a team needing a C, it feels like Elko is going to be a casualty as well.
Edit: unless they DFA Michael Taylor.
I believe a team can not offer a QO if they buyout a contract. However, if a player has an opt out and does, a team can offer him the QO. I could be wrong on that first part though.