It's always a bit comical to read these things when everyone goes nuts, but I don't have time to read the last 20 pages right now.
The economics of baseball have changed (and the Markakis deal isn't a terrible one given where they're trending), but the Braves' place in that economic structure haven't - they're always going to have to draft and develop from within (with the international signings sprinkled in) to be competitive - Atlanta is a mid-market team with a ****ty TV deal.
FWIW, whether you like them or not JS, Hart, and Cox have a long history of being successful and they felt that Miller, Jenkins, and the money they'd save between Heyward and Markakis would go a long way towards building a much stronger franchise for the long haul. I happen to be one of those who agree with them. Seems like I'm always one of the ones that has to point out that trades aren't made in a vaccuum. This was one part of the plan to make the club eventually become the consistent threat it used to be. There's NO help on the horizon and the system's been gutted. If Upton and/or Gattis are dealt for almost MLB-ready pieces to build depth and we're not great for a couple years I'll be able to handle it.
These guys are trying to dig out from under two franchise-crippling contracts with very few attractive trade pieces if they want ANYONE to come to the new park when it opens. They could trade Teheran, Wood, or Simmons for better returns than they got for Heyward, but then they'd truly have to rebuild and that's not an option with a new stadium coming.
Everybody's screaming about the sky falling because we may take a step back in order to take two steps forward - that's what mid-market teams have to do, they don't have the resources to do it any other way.