IMO it would be a major coup for the Celtics if Sullinger dropped into their laps, as long as his potential problems are a few years out. We don't need him to be a cornerstone... if he's a 15/8 guy who clears a ton of space underneath in the short term that would be massively useful to us, especially on a rookie contract.
Draft Sullinger and open up our wallets for Hibbert or McGee and I think things get very interesting. I think we can afford to pay those guys with Rondo, Bradley, Moore, JJJ, Sullinger would all be making less combined than one max player for a couple more years.
A big man rotation of Garnett, Sullinger, Hibbert, Wilcox, JJJ, with Jeff Green able to play some 4, would be a lot for any team to match up with.