Yes, and we did better with Boozer and Okur than we did with Jefferson and Millsap.
That is the case partly because of a lot of variables--having Deron, a younger AK, Matthews, etc. Jefferson and Millsap had a new coach (equally ineffective at optimizing rotations), no Deron (for most of the year), a rookie SG/SF in Elder Hayward, and an aging Bell & AK.
Also, Big Al is 4 years younger than Boozer--and he started deciding to play defense more often sometime during last year. I'd say that Jefferson's upside is equal to or higher than Boozer's because AJ is a bit taller and potentially a better defender. Not as good a shooter/scorer yet.
In both scenarios, the Jazz would have done better if they had put a true center alongside any four of those guys more often. Given the bottleneck at the 4 spot (and the talent level of each of these PFs individually), it wouldn't have made sense to not play these pairs together at all, but an extra 10 MPG with someone who could actually control the key would've translated into more wins both last year and in the Boozakur era. Too often the paint was an Achilles' heel (er, elbow), causing the wings to be obliged--or instructed--to sag in, indirectly making the 3 point circle that much more vulnerable to opposing treys.
With a 4/5 rotation of Kanter, Favors, Jefferson, maybe Millsap, and an occasional Okur, perhaps Ty Corbin can find a combo that can actually score offensively
and control the frontcourt defensively.