The problem with the Hamels and Smyly deals were that AA was somehow trying to add a #4 with upside for more. To get that, he rolled the dice on a guy with injury concerns and/or mysterious bumps in measurables, and it bit him.
So...stop doing that. The Braves need a guy who is almost guaranteed to come in and provide innings with a 4.0-4.5 ERA. That guy needs to pitch until the rotation settles down. He does not need to start a play off game, so stop assuming risk in an attempt to get a guy who could potentially start a playoff game.
Get a guy who can reliably gobble up innings starting on the 4th game of the season, and Greinke is probably that guy. Rodon...no...that's exactly the risk AA should be avoiding.
Have we heard anything about Soroka coming back?