I'll have to see Turner's contract structure, but as of now I rather keep Green for the time being. I'm having a very tough time finding anyone, particularly an attainable anyone, that would be an upgrade over Green. The context, his length and ability to match-up extremely well with the top SFs (more importantly defensively) in this league, and that's a very underrated asset to have around here for some reason.
Yes he's inconsistent, yadda yadda, but when you're in the playoffs you'll be glad to have Green when playing against the LeBron, George, Melo's of the world instead of the Hayward and Parsons of the world many in this forum were salivating over.