It is much easier to sign that deal when you have people outperforming their contracts. Utah has that in Gobert who would be worth more than his max limited contract in an open market. Boston has that right now in IT, but that situation is going to get fixed next year. Do you really believe that Boston has a championship opportunity with Hayward, Horford, and IT on Max or near max contracts? That is 70% of your capspace for 3 players who would not be all stars in the Western Conference. Each of those dudes may be "worth the max" but just barely. You are going to need someone on that team to completely blow up while at a bargain price to really take a step. I believe the Jazz have that in Donovan Mitchell.
Portland has a whole freaking team of "market value maxes." How did that work out for them?
I believe Boston has a good of a chance as anyone not named Golden State.
And Portland's problems are that their two best players are redundant and their role players are inconsistent and not really 2-way players.