Also if Hayward decides to leave (which he is allowed to do just like BOS can trade Isaiah Thomas), please before you do something stupid, take some time and breaths. Don't be that fan that burns jerseys, talks shit about a guy on the way out, or worse talks about his family
The Celtics could wisen the F up and re-sign Hayward. Or they could acquire something good in a sign-and-trade deal IF and that's also capitalized, IF Hayward wants to go to a team over the cap. I don't want to hear about some sign-and-trade for nothing, but a trade exception (which often expire unused). Or worse where Boston has to cough up a 1st rounder to convince a team with cap space to trade us said trade exception.
If Hayward signs outright with a team with cap space like the Hawks or Knicks well that's the worst case scenario.