data-mm-id=”_4nv1yphwk”>MLB analyst and former big league general manager Jim Bowden took to Twitter on Monday and declared San Diego Padres general manager A.J. Preller a "rock star" for what he pulled off over the past few days. It's hard to argue with that characterization. Preller and the Padres spent the last four-plus years carefully stockpiling young talent to form baseball's top farm system. Over the last few days he dealt from the tremendous depth he built to fundamentally remake the Padres in stunning fashion with several enormous deals. The crazy part? Preller and the Padres didn't surrender any of their top four prospects and still likely possess a top-five system. The Padres landed the top catcher (Austin Nola), and starting pitcher (Mike Clevinger…