Open Extended ReactionsAfter three weeks in which Detroit ruled our rankings, the Dodgers are back on top in Week 13. Plus, Milwaukee makes its top-10 debut as rookie pitcher Jacob Misiorowski continues his blazing start to his MLB career. -- RogersRecord: 47-33Previous ranking: 8The one constant in a season of change for the first-place Astros is lefty Framber Valdez. -- GonzalezRecord: 45-35Previous ranking: 9Ranking the top 50 MLB trade candidates More Red Sox stars on the move? -- OlneyRecord: 34-46Previous ranking: 24Updated top 50 MLB prospect rankings Starting with a new No.