In a vacuum, I'd love to have Giannis on the Jazz. Who in their right mind wouldn't? In the real world, Giannis is an aging superstar (31 years) with growing injury concerns. Without taking the time to look at it, I'd suspect that the experience of teams pushing all their chips in for a superstar on the wrong side of 30 has very mixed results. If we denude the Jazz of serviceable players and draft picks to get Giannis, it would give us a window of only a few years, and after that relatively short window, we'd be likely find ourselves right back to where we are now: rebuilding. Do we really want to have endured four years of losing for 2-3 years of "glory." Even then, the odds of winning a ring would still be long given the magnitude of the competition in the West--Jokic and SGA aren't going away soon. The entire rebuild is premised on the outcome of an extended run of playoff success (i.e., deep playoff runs) (a premise lacking confirmatory empirical evidence, from where I sit). I don't want to have endured these last four years of tanking for a short-lived playoff run that's as likely to end in the second round as in a ring, only to be back to tanking again a few years later. I don't see this scenario as an acceptable return on investment for the last four years.
Of course, since we can't know what the actual counterfactual is, it may play out quite differently than this, and we go on an extended run of deep playoff pushes. But I come back to be wary of cashing in the last four years of misery for an aging, injury-plagued, or high injury-risk, superstar.
