Anybody want to guess what the plan would be if Kyrie does leave and AD is not traded for?
Re-sign Terry. Let Morris sign elsewhere.
Hope Baynes opts in.
Hope Horford opts out and re-signs for a more reasonable sum. Or maybe just let him go ring chase elsewhere, but I think it'd be better if he stays.
Probably try to spin all the draft picks they have into future selections or a reasonably established but still relatively young player.
If Kyrie leaves we then enter the Jayson Tatum / Jaylen Brown era. The goal becomes maximizing those guys and aiming to have a quality team around them by the time Tatum is nearing the last two years of his second contract.
Because Lord knows if the Celts aren't contending by the time Tatum is 25 or so, he's going to be looking for greener pastures and letting it be known that he'd like a trade.