It’s an easy analogy – the M’s have a glut of young shortstops, making one of them obsolete. Other teams *know* that said SS is on the block, and low-ball the M’s accordingly. But it’s tough finding middle infielders with decent power in 2015, so they eventually yield and make the deal. And thus, a year-plus after dealing Nick Franklin, the M’s have shipped Brad Miller (and Logan Morrison and Danny Farquhar) to Tampa for SP Nate Karns, CF prospect Boog Powell, and reliever CJ Riefenhauser. The M’s hope Karns/Powerr are more useful than Austin Jackson turned out to be, while the Rays hope that THIS M’s SS prospect works out better than Nick Franklin.