That's the problem: Escobar, Semien, Tatis, Devenski and Bassit were traded away for virtually nothing - and there was no real upside possibility in any of those trades. Escobar, Tatis, And Devenski were dumped in silly acts of FO desperation. Reed and Montas (and of course Sale) were traded away, but at least there was some logic and good-faith behind the trades.
and most of those guys were picked in the first 1/2 of the decade.
It's a surprising list, with the Astors, Mets and Jays making the playoffs (and more), while the Sox hold hands with the Marlins.