Turner isn’t going away. It has been mentioned numerous times by several players, coaches and even the FO what a great teammate and presence Turner is in the team. Releasing him would upset the team chemistry and frankly he isn’t playing that poorly to be released. I am fine with that. But that doesn’t mean they can’t add Burger for Berti. With Shaw and Nico the Cubs could move guys around to give everyone a day off, every so often, and get AB for Burger at 3rd when they do sit a middle infielder. And still have Turner. That said, I don’t think the focus is going to be on the bench. I think it is being overblown here as some major need.
If Long or any other guy at AAA is worthy of a spot on the bench it will come after the minor league season. So they can give them a full year there but still have them for the playoffs. I don’t think you will see both Berti and Brujan on the bench come playoff time. One will be replaced by another bat, whether through a trade or a promotion AFTER the minor league season ends.