We have been a mediocre team all the time that Turner has been best 22. He wouldn't be close to best 22 in a genuine top 4 team. Yes, we tried to trade Wood out and there were no takers. I think we can pretty safely assume that if we tried to trade Turner there would be zero takers. If we delisted both I am pretty sure that Wood would be drafted before Turner as his upside is miles above Turner's.
One of these players is Kayne Turner, the other is two time premiership player Jason Castagna.