Braves might be in a position where they have to trade both guys if they want to field a high quality team in 2017. Here is an approximation of the contracts already on the books for 17:
BJ Upton: 17,000,000
Freddie Freeman: 21,000,000
Andrelton Simmons: 8,000,00
Chris Johnson: 9,000,000
Julio Teheran: 6,500,000
Craig Kimbrel: 13,250,000
That's 74.75 million we've got tied up for 6 players, and one of them is terrible and needs to be replaced and another is league average at best.
Have to at least trade one. Makes sense to do it now so you can get close to max value.
Actually I would listen to offers on every one of those guys. Teheran would be the one I'd be least likely to let go. I'd listen on Freeman and Kimbrel.