It may have not been the "fireworks" off-season people were hoping for, but then again I don't think Danny could have done anything else after getting hosed yet again in the lottery. The deals just weren't out there. The one deal he made was outstanding in getting Zeller and a 1st for the TPE. He drafted Rondo's heir-apparent in Smart, which means he'll be in a great position to deal Rondo when his value may be very high (at the trade deadline). He resigned Bradley for reasonable money and given the growth in Bradley's game that deal may be seen as a steal in a year or two.
Danny has collected yet more assets and is really set this year to showcase them - Olynyk, Bradley, Sully, Rondo and Green while bringing the new guys up to speed (Smart and Young) without putting too much on their shoulders too soon. The club is constructed better this year and he's done it while adding more assets.
Think about it this way....how much does the dynamic change if Sully becomes a 17/10 guy? Or if Olynyk shows he can be a 20ppg scorer? Or Bradley continues to grow his game and becomes a 15 PER player while still being a lockdown defender? Or Rondo shows he's healthy and goes back to being a 20 PER player? The demand for these guys would be incredible. None of those are that much of a reach and if any of them happen then Danny all of a sudden is holding awesome cards to deal or enough cards to add to a growing core of a potentially good team. And it's not like all of those need to happen...just one or two of those things coming true changes the entire dynamic. Of course, none of those may happen in which case it's back to the drawing board.
Essentially, this is the year everyone gets to see how good of a hand the Celtics really have. And it could be mediocre, or it could have a couple of aces in it. The future for most bad teams revolves around one player - usually their new high draft choice - and that's about all. In this case, this draft could be an entire bust and the Celtics could find themselves with a much stronger hand than they had last year. It will be interesting to see how it all plays out.