The Braves recent track record at developing pitchers has been abysmal.
They've been much better with hitters.
Unless you're planning on getting 3 hall of famers again, I'm not sure I'd call riding Maddux/Glavine/Smoltz a "proven philosophy"
While you've been going crazy overkill and snarky in this thread, this is straight up true. We rode those three (one a trade and another a FA signing) along with another HOF in Chipper for our run. Once two of the big three pitchers were gone we've had very little success overall.
There is nothing "proven" about the philosophy at all, and to act like there it has been is crazy. The Braves haven't developed good major league pitchers at a higher rate than other teams particularly, acting like we are the end all of scouting and philosophy is silly. I think the FO has done far more positive than negative during this rebuild so far, but they haven't proven crap.