I, like most people in this thread, was disappointed in the Celtics' offseason. But I think they made the right decision with Posey. While not having him hurts now, I think he'd be dead weight in a couple years. Might happen, might not, but that's my opinion.
But I do think the offseason was a success in one area: Danny didn't make any big mistakes. I think too often teams spend big money on lesser players because their fans are expecting them to spend money. A good example is the Cavs a few years ago, with Donyell Marshall, Larry Hughes, Damon Jones, etc.
Danny could have seen the glaring need for a big backup center and said "I know, I'll sign Nazr Mohammed for 4 years!" But fortunately he didn't spend just to spend and brought in some projects who have the potential of being stiffs, but are at least guaranteed stiffs with horrible contracts.