I like O'Quinn but the upside on Okafor is way better than what O'Quinn brings.
The reason they want to do this deal is to pair Davis, Okafor and Holiday together.
Okafor's main weakness is defense and with Anthony Davis he can cover up for some of Okafor's weaknesses. Anthony Davis has the speed to play 4 and seems to prefer that position anyway to start.
I like the deal for the Pelicans.
As for O'Quinn I wouldn't trade him unless I got something really good. He's a good backup. We may also have a very good backup in Willy, but maybe Willy is more than that and a good starter. So lets see how it works out without Willy. Injuries always come into the equation as well. It's never a bad thing to have a big with the skill of O'Quinn. He can hit the outside jumper. He can make short drives. He rebounds and blocks shots. Good activity rate. Good for the bench. We need some continuity to this team. Trade Melo, get a real point guard with leadership skills instead of Rose, and find some young athletic wings that can defend. Lets see how the team plays after that and decide who should be traded. A lottery pick will be added to the team as well, so his development is part of the process as well.