I was a Rudy Gay fan when he was in Memphis, but "advanced stats" hate him and I really didn't want him this year. So not a lot of positive energy over this trade, but it does shake things up. I imagine the FO figured their capspace is useless for attracting free agents, so they're going to use it on Gay's bad contract for a year or two to see how it plays out.
This will result in a rather interesting staring five, but as I mentioned in some other thread, the team is being built to run and Cousins is not built to run.