that's like saying "When Okur comes back, we'll be better"; not necessarily true.
More likely than Slowkur, but not necessarily. Does provide another OK body--just not a consistently game-changing one, unless his defense stops canceling out his offense.
But if he decides to box out decisively, start passing judiciously, and put forth smart effort on defense, then we'll clearly be better.
This also can be facilitated by Corbin attempting to enforce quality play, as he did with Harris vs. Philly; given that Favors, Millsap, and Kanter are viable alternatives to AJ in most cases, Corbin has the backup (literally) to bench Jefferson (or any other big) when he is dogging it.