Posted this in the other thread. I don't know about chasing him, but I think you definitely give the Bucks a call.
The Celtics cap situation gets pretty difficult if you make Hayward the main salary you trade back. It'd probably need to be Walker or Brown. It would stink to lose either of them.
Still, the Cs can offer a similar package to what the George trades, Butler trades, Davis trade, or Leonard trade got.
For example, just look at the Leonard trade:
Hayward is roughly equal value to DeRozan on a shorter contract. I know DeRozan averaged bigger numbers, but their impact on the court is pretty similar when it comes down to it. Rob Williams is similar value to a player like Poetl.
Or, to look at it differently, take the Clippers trade for Paul George:
Hayward and Gallinari are similar values.
Shai is probably a better prospect than the Cs offer, but they could offer Williams and Langford.
Pick 14 in this year's draft will be a better pick than any pick the Thunder got from the Clippers. Plus, the Cs can offer more picks and swaps.
Or how about Davis?
Ingram is a pretty high upside player. Jaylen Brown is probably similar value (that would hurt me). Honestly, Hart and Ball from a year ago are pretty similar value to Williams and Langford at this point. The picks the Cs could offer are not quite as good as the initial ones that the Pelicans got from the Lakers, but the Cs could offer something similar in overall value of draft picks.
On top of all of that, Giannis will probably have a limited number of teams he would actually be ok going to. The Warriors could be one of those teams, but would the Bucks really rather have Wiggins and 2 over the Cs trade package? The Raptors look pretty decent, but is their roster really better than the Bucks, especially once the Raptors include all the players they'd need to in order to make the trade happen? The Heat could be a real wild card with Herro, Nunn, and their middle-tier contract rotation guys, but again, their draft capital is limited. The Nuggets could be a really interesting possibility because of their mix of middle-tier contract rotation guys and young talent like Porter Jr., Bol, Morris, and Murray.
All I'm saying that if Ainge placed a call, I would think the Cs would at least be in the mix. But before we get ahead of ourselves, let's make sure this roster isn't a championship roster first.