If I was the Braves I'd be looking at Hammel and seeing what it would take to get him from the Cubs. They want two MLB starters and he is one of the better options out their. The FA are going to get huge deals for average pitchers IMO.
Others could be called upon like Carl Edwards Jr and Jake Buchanan and Rob Zastryny
The Cubs will certainly be adding at least one starter this off-season. But Hammell would have been a nice fall back option if they can't get a deal done that they like, or at least a trade chip. Unless they think they will be re-signing him at a lower price, I don't get the move.
The Cardinals have too many guys in their rotation and they picked up Garcia's option simply so they could move from the depth with a limited free agent pool of starters. Their current rotation (note, the Cubs rotation is better, they just have less depth and the two pitchers have similar values and similar options)
And then others that can start like Lyons, Mayers, Gonzales, and Cooney.
If one of the teams were to pick up the option, I would have thought the Cubs would be the team to do so. Though, he wasn't on any post-season rosters I believe. But he also had a better season than Garcia.
The Cardinals will definitely be moving a starter out of the rotation in a trade, and two of Wacha, Weaver, Reyes will probably be going to the bullpen.
Garcia and Lynn are in the last years of their current contracts. I don't know who the Cards will be trading, but someone will be moving.
I think Edwin sets the tone this year. It's no secret he wants to stay in Toronto and his asking price has been set. I fully believe he'll give the Jays a home town discount if it's reasonable but regardless of where he goes I think he'll have a deal signed this time next week.
A lot of talk that the White Sox could do a huge sell off. That makes Chris Sale, Jose Quintana, Jose Abreu, Todd Frazier, Melky Cabrera, David Robertson, Nate Jones, Brett Lawrie and maybe Adam Eaton available.