So think it's highly unlikely the Spurs throw money at Holmes outright. Hornets COULD I guess, but that would be such a strange use of resources. OKC could be a real butthead and take on Dragic from the Raptors, but I doubt they'd make the "win now" move and try to sign him outright.
So OKC absorbing cap space to allow someone (Raptors?) to sign Holmes, or the Hornets grabbing a 3rd center after trading for Plumlee and using a 1st on Kai Jones.