My answer is no to absolutely any trade that involves bringing Joe Johnson to Boston.
As long as Brooklyn is paying $25M for a guy who's scoring 12 Points Per 36 on 39% shooting, we are in a good place. No way I'm bailing them out of that.
Right now Lee is actually, statistically, a far better player than Joe Johnson (he's averaging 16/10/4 Per 36 and shooting 45% from the field). He's just not a good fit here in Boston, since we have too many bigs and can't give him proper playing time.
Last thing we want is to send Lee over to Brooklyn and watch him rejuvenate his career by giving Brooklyn the reliable 6th man they so desperately need, as our draft pick rapidly declines in value.