I think they're going to trade Brook and make this whole conversation moot anyway. He'll be 30 by the time they need to max him, which also coincides with them getting their picks back. Brook doesn't make sense in a rebuild and he REALLY doesn't make sense in a rebuild as a max contract after age 30. With the cap madness he is finally a good value and should yield a couple decent assets to help their cause (and ours).
It's nice that they were able to attract bench players with money and promises of starting, I guess, but all of that cap space couldn't get a single relevant FA in the door. Conley, Bazemore, Fournier, Horford, Barnes (pre-Finals), etc...these were names that I saw Nets fans regularly throw around as possibilities "because Brooklyn" and "because cap space."
All I can say for sure is their offseason wasn't a complete disaster, though it would be close if Johnson and/or Crabbe are matched.