When did Hosmer and Moustakas have success? Neither posted an OPS+ of even 100 last season. I believe Moustakas had a nice rookie season in 2011 but neither were any good last year. Span for Meyer is a completely different situation. It was the right move because it fits in with the entire Twins game plan... And that plan involves a return to competitiveness in the next 24 months and keeping that window open for a full 5-6 years after that point. Maybe Meyer flames out... It happens. He's a prospect. Which, again, is my point. When you're returning to competitiveness, you want more prospects you control for 6+ years, not less. The more prospects you have, the more wiggle room you have in case of the inevitable prospect failure. If it takes a couple of extra years to get a prospect on track (like, say, Kyle Gibson), the rest of your prospects are under control for six years, not two, and you still have a good shot at recovering from that setback. The goal is to keep the window open as long as possible so that you can adapt to situations as they arise, not to corner yourself into a risky game plan, and that's exactly what Moore did and thus far, it has blown up in his face. Sure, the Royals can trade Shields. They'll get a decent return for him, too. But it won't be the #4 prospect in all of baseball. It won't be Wil Myers.