This one is mine, and my point was that short of this trade, very little of what AA did amounted to anything re: the MLB roster. It's a nice hustle, but without it his mark on the MLB side of things looks like a lot more like a skid mark.
As for spending prospects on lame vets vs. signing better prospects to replace them: that's like saying throwing money away is forgivable if you happen to strike gold later. You shouldn't have to rely on super prospects falling into your lap to keep yourself in the black. No GM can really control the breaking out or flopping of a prospect. Between managing your assets vs. watching one become a super-asset, it's only the managing of them that's completely up to the GM, and people are arguing that AA spent his assets poorly.