Way to much panic.
The best thing that can still happen is Hayward opting out and resigning to a long term contract at a lower price (which signals the team is ok with the Tax)
Then Kanter opts in and the Celtics can combine him, a late draft pick and some salary filler to get a useful vet (George Hill would be great).
Then use the other two draft picks to move up and draft their target.
Use the tax level MLE to add one more vet.
Not losing Hayward for nothing is a very important thing. But Having Hayward himself is not in the best interest of the team, imo.
Smart/Brown/Tatum have the sg-pf spots on lock down. Team needs a huge improvement in depth and could really stand to have a sizeable difference at Center.
Draft can address some of the bench, maybe
a tax payer MLE will help a little
Trading Kanter might help a little.
But none of those will put the team into contention.
Hayward needs to opt in, or be signed and traded for some talent that better fits our needs and age.