7-16 Jonathan Mayo joins Murph & Markus to share his perspective on Buster Posey's first draft class, Bryce Eldridge, & Carson WhisenhuntReporter, covering prospects, for MLB.com & MLBPipeline.com, Jonathan Mayo joins Murph & Markus to share his perspective on Buster Posey's first draft class, Bryce Eldridge, & Carson Whisenhunt