The Boston Celtics (for the time being) still have the No. 1 overall pick in this year's draft, which -- in theory -- would mean that every prospect slotted in the top half of the lottery would like to workout for them. But according to the Boston Globe's Adam Himmelsbach, the Celtics have still been unable to get former Kansas star Josh Jackson or former UCLA star Lonzo Ball to workout for them. This contrasts with a report yesterday that Jackson would work out with the Celtics in the days before the draft. Ball's lack of interest in Boston is not much of a surprise -- the Lakers were always his target destination, and he made that clear in the weeks leading up to the draft. Jackson's decision to spurn the Celtics so far is considerably more interesting, and there are a few possibilities. The simplest is that Jackson may not want to play for Boston's already-loaded roster, where minutes will be at a premium. He also may not have wanted to work out for the Celtics when it was clear that they were likely to draft Fultz, and that now -- late in the game -- his schedule is simply too packed to fit in a trip to Boston. It's also possible that he wants to wait and make sure the Celtics aren't just smoke-screening everyone with their interest in trading the pick.