Joe Johnson is not overrated because he's gonna get paid more than he deserves. He's just gonna be overvalued and overpaid. So many teams have dumped massive cap(immature moment. sounds like dumped massive crap) that there will be a lot of FAs being overpaid because some teams will be disappointed because they did not land a top FA.
David Lee is overrated.
This could very well be a disappointing off-season. If we dont get Wade, James or Bosh, it will suck because those are three guys that can catapult your team to the top 3 of the East. Boozer, Amare and Johnson are that next level of players who will all improve your team but wont get you into legit title contention. But they all will come at a somewhat cheaper price than the big 3 and if you sign one of them, you will most likely have a deeper bench which really counts in the NBA.
All in all, this Chicago Bulls team is too attractive to not pick up any of the players mentioned above. The big three will be the first ones to sign their contracts. Believe the Bulls will get desperate and throw big money at the second tier players if they dont land the big 3. We will be a much better team next year than we were this year. I truly believe that.