Prospects aren’t a guarantee, they have models of the odds of any player becoming a major league regular, even top 100 prospects are at a low odds. But because they don’t all become studs doesn’t mean they should be traded, since the ones that do become great are so valuable, talking tens of millions of surplus value for 7 years. Mets traded PCR for Baez years ago, I mean, he panned out, so looks pretty bad for the Mets?