It may be unpopular, but I've thought Fox may be Danny's guy, and #2 on his list. I speculate Ainge may have Fultz rated #1, but not as strong a #1 as the consensus seems to feel, and thus is ripe for a tradedown to say, Phoenix at #4.
#1 for #4, the better of 2018 Pho/Miami 1st, and the better of 2021 Pho/Miami 1sts.
or
#1 (and fillers) for #4, 2018 Miami 1st, and Bledsoe (to be flipped w/Crowder, Rozier+picks for Butler)
he may be hesitant to trade to PHI, but #1 for #3, 2018 right to swap 1sts, and the better of 2019 PHI/SAC 1st
I also think there's a few scenarios where we sign a big free agent, and the lower rookie salary slot is needed. Not saying all this is probable or likely, just that Danny has surprised us before (Rozer, Jalen, Yabu).