I thought Billy King was fired? Why is the management still so bad at Brooklyn... Lopez is a former all star still very much in his prime... I wouldn't even do Lopez for Russel straight up. Let alone taking on Mozgov's disastrous contract. While giving up another first round pick on top of that? Simply a bad trade all around...
Lopez is in his late 20's. The Nets know that their rebuild will be another 3 years minimum. They don't start to get their first round picks again until 2019. By then Lopez will be in his early 30's while the rest of their key players will be in their early 20's. He just doesn't fit their window. The timeframe they are looking at. Mosgov's contract doesn't hurt them. By the time they get their picks back Mosgov's contract will be set to expire.
They got a young and talented former top 5 pick in exchange for taking a contract that won't hinder them at all, a good player who just didn't fit long-term and the #27 pick. Great trade for them.