Think about it this way: If Beal demanded a trade to Boston, stating unequivocally that he will not sign anywhere else in order to play with Tatum, we can make a trade for him by moving Fournier (@$20 million/year), Richardson, GWill and picks. We’re then set with a Big 3 AND a respectable supporting cast.
Without having Fournier on the books at $15-20 million/year, we are severely constrained when a superstar becomes available, whether it’s Beal or someone else. We do not want to gut our supporting cast to get a third piece, right?
Isn’t the goal to add a third piece to Tatum/Brown while still having a respectable supporting cast, so we can compete for titles? There’s no way to achieve that without either being in the tax NOW with Fournier, or being incredibly lucky with a future draft pick which means a long wait and incredibly poor odds if we’re drafting outside the lottery (the third way would be to be incredibly lucky to somehow trade for a future all-star while he is still on his rookie contract, and SGA is probably the only possibility on that front with no guarantee of his foot being 100% again).
Ownership should not be saying they are going to die trying, but are unwilling to pay the tax. If they cannot afford the tax, sell the team to someone who can and will.