Interesting point I think you indirectly made here.... When you deal 5 starting pitching prospects to get an impact SP and an impact everyday player, you can tell yourself.... "Well, one of them will probably turn out to be a good player, one of them will probably turn out to be an ok player, one of them will make the big leagues at one point but have no impact, and the other two will flame out." Under that assumption it feels like a great deal(s) for the Royals. The scary part is when you are giving up one or two prospects and they MIGHT be the two that flame out or they MIGHT be the two that end up making a significant impact at the Major League level. I guess my point is, the more deals you make for major league talent by giving up minor league talent, the better chance you have of coming out ahead. Lots of prospects never make it, so it's the law of large numbers. If you only make a minor deal or two, the odds of it biting you in the butt goes up a lot.