I don't believe the Celtics would have the 6 million to spend.
We have the 6 million to spend on our own free agents.
The upside - if there is one - of Ray not resigning with us is that the $6M we earmarked for him goes back into the pool from which Danny can spend on the rest of our roster from last year.
If Ray does leave, I think the following will happen:
1) Pietrus will be signed
2) Stiemer offer-sheet will be matched
3) Wilcox will be signed
4) If Kristic is attainable, there will be a strong effort to get him
This is all assuming Jeff Green is basically sealed and delivered, and that Danny is just waiting for resolution on the Ray situation to announce it. My guess is Danny is doing that so he doesn't lose the 4 players listed above to other offers now.
The cap math I think is pretty clear if Ray resigns. We can't retain all of those players. Stiemer is most likely gone. If we can't get Wilcox on a vet min or the BAE, he is gone (and I'd only do a vet min with him.) Dooling would probably get a vet min offer. As would Pietrus, but with Ray back we really don't need either of them.
So...no OJ Mayo, sorry. Have to settle for Peaches.