I predict the Celtics DO NOT sign Hayward. According to the rules, he can make more money/years by resigning with the Jazz, who are a playoff team with a number of other good young players. Hayward has started a family, quality of life is good in Salt Lake.
I sure hope he "resigns" with the Jazz!
This has been covered before, but the money should not be that much different. The reason being Hayward could get a 3 year + option and be a free agent again when he's 30 years old. Then he will be a 10-year player and can sign a new contract for an even bigger max deal.
The whole 5th year and extra overall money was supposed to keep players on their original teams, but the problem is some of the ones who will take advantage of it are older ones (e.g. Chris Paul, 32 years old) or the ones that are concerned about their own potential for injury (e.g. Blake Griffin).
The effect is that any player who you would really want to sign to that five-year deal, for example stars with clean injury histories and still in their prime during the five years, might be better served signing short-term deals and getting raises as opposed to being locked into a 5-year deal. And players you DON'T feel comfortable signing to a 5-year deal are probably asking for it.
Isn't it ironic? Don't you think?