Lee needs to catch everyday somewhere and AAA is fine imo. I'd hold off on trading him as we're only on C injury away from needing to add someone to the 40 man. I'd prefer not to do that.
He's been on a per game basis one of the 30 best players in MLB since he came up. He has a 127 wRC+ while playing a slightly above average MLB defensive SS. That's a helluva player.