It’s more than a decent signing, it was a great one.
How do people not understand this?
So the theory is that it is a great signing because it allowed us to sign Hayward (at least in large part) and also why Kyrie accepted the trade here. Is this what we all don't understand? Of course this all speculation and we don't even know if Hayward will turn out to be a good signing.
Kevin Durant would have been a great signing. I can't think of any others I would classify as great. I don't consider Hayward a great signing. I categorize him as decent, certainly best available. I guess it is all semantics.
The potential downside of any max signing for other than truly elite players if the future opportunity cost due to the money that you have tied up. So far, we have not had any missed opportunity due to Horford's cap space but now with Hayward on the books too, things are starting to get tight. We may lose Rozier or Smart for example, or miss out on a FA that becomes available because we have no cap space. This is why I say decent, not great and why I think many have reservations about the money we have tied up in Horford (and Hayward).
except no one really knows what the lost opportunity cost is. Maybe if Horford isn't on the books, Ainge pulls the trigger on a trade or uses the cap space differently last summer. I mean with space for 2 max contracts last summer, maybe Ainge pulls the trigger on the Crowder, Smart, and the 2018 1st for George trade (and since there is cap room no one else has to go out). Then he still has the room to sign Hayward and then Ainge uses Bradley, Thomas, and the BKN 1st to acquire Irving (Zizic is no longer needed for salary so maybe he is kept or maybe not) and then still adds players like Baynes in free agency. Maybe Olynyk is able to be kept in that scenario since he wouldn't have to be traded to make room for Hayward anymore. So Boston rolls out a unit of Irving, Brown, Hayward, George, and Baynes with Rozier, Tatum, Olynyk, Theis, Yabu, etc. on the bench. Hayward likely doesn't get hurt and maybe with Hayward and George bearing more of the load, Irving's knee surgery can hold off till the off season. How much different is this playoff seasons with that team rolling out on the floor?
Again who knows what happens, but this idea that Horford was and is the absolutely best way to spend the money isn't a given. It might very well have been, or it might not have been.
I believe Hayward signed in Boston whether Horford was on the team or not. Him coming here was about Stevens.