Dallas won?t trade the #1 pick because they are too scared at this point. That said, if they truly believe Anthony Davis gets them closer to a championship than Luka Doncic, then they should do so. Flagg is a great prospect, but he is not Victor Wembanyama. In other words, he is unlikely to be an elite NBA player from the jump.
Further, Flagg?s best position is at the 4, which is also AD?s preferred position. This means that one of the two will have to be in a sub-optimal role.
Is JB the right player for Dallas? I would argue he is one of a handful that fits well. Kyrie, JB, and AD form a much more cohesive core in terms of positional fit than do Kyrie, Flagg, and AD. And in terms of being able to compete for championships with their pre-existing core of Kyrie and AD, Jaylen is on a far better timeline than is Flagg.
The other sensible option for Dallas would be to trade AD and lean into a longer-term build with Flagg, but Nico Harrison would also be hard-pressed to do that from a PR perspective, as Dallas is not going to get back Luka. So instead Dallas will be caught in the middle.