Well, as with life in general, the hair-pulling and regrets do have the benefit of helping avoid similar mistakes in the future, at least supposedly. Maybe evolution selected for such a high-degree of guilt, bitterness and regret in our species because it takes that much to penetrate our thick skull to not make the same mistake twice. I assume Beane has an outcomes-assessment review in place where his staff considers why they made the mistakes they did, going back years. I'm sure it's more efficient than hundreds of pages of posts declaring how idiotic certain picks were. But, given the thick-skulls theory, maybe reading through the thorough roasting here is what it would take to persuade him not to draft players like Boogie Basham and Cody Ford.
In any even, go Keon! I really, really do not want to spend the next ten years despairing how we could have had Ladd or Xavier.