Okay... We all tend to get caught up in proving that we were right and someone else was wrong about any given player. Yeah, Blair has not turned out to be what we hoped. Agreed!!!
As has been mentioned, the Braves have young pitchers projected to come up in waves over the next few years. Most of them will likely turn out to be "nothing special." We have high hopes that a handful of them will turn out to be special.
Without looking anything up, I would guess that there might be 500 or more guys pitch in MLB in a given year. Some will be young guys who get a tryout of sorts and then disappear. Some will be AAAA guys who aren't expected to do much. Maybe 200 will be above average pitchers with effective careers. In our previous discussions we have more or less agreed that even top prospects bust at a high rate. (Potential and results are often not correlated as well as we might hope).
Those guys have to come from somewhere, so it is safe to assume that many effective pitchers come from nowhere without the hype and high expectations that top prospects carry.
In a nutshell... Some of these will pan out (probably not as many as we hope), some will move to less prominent roles, some will become journeymen with undistinguished careers, and many will just fade away.
The Braves have taken the approach that a huge number of highly thought of prospects is a good approach to get a few high quality pitchers at affordable prices. Other teams may decide to let someone else develop pitchers then trade for or sign the best. (more costly for each one, but less speculative).
Which is the more efficient model? We all have our opinions, and mine does not depend on proving you wrong if you disagree.
I love the discussion and information I get here... but I wish we could all stop worrying so much about proving the other guys wrong.
This article objectively shows which is the more efficient model: http://www.fangraphs.com/blogs/valuing-the-2017-top-100-prospects/
The only reason folks argue for the "stockpile pitching" model despite all evidence that it is inferior is because the Braves are doing it, and they like to cheer for the Braves.
I am 100% confident that if Coppy had stated 3 years ago, "we think building around position prospects is the best way to build a long term winner because hitting prospects have proven to be more valuable over the last few decades", we wouldn't be having this debate.
We probably also wouldn't have seen 7 pitching prospects bust at the MLB level.