The playing time of veteran Astros infielder-outfielder Darin Erstad is as good a gauge as any to determine whether the Astros are converting to a rebuilding mode, or continuing to fight for a playoff berth even though the team is a dozen games out of contention.
Erstad -- now playing highly effective baseball after years of health difficulties -- will likely be given more plate appearances if the team desires to win. But if the team decides to focus on the future, Erstad must be benched or traded in favor of acclimating younger talent at the big league level.
Doctor X -- the 'Baseball Medic' -- is an anonymous U.S. government trauma specialist with a Duke University sports medicine background and more than 20 years experience in emergency medicine. From time to time he considers MLB rumors, events and news reports as they pertain to baseball players' injuries, illnesses and various other disabilities, both on the field and off.
MLB Rumors editor Greg Fieg is a former sports news editor and award-winning writer whose bylines have appeared on the wires of the Associated Press and in numerous publications, including San Antonio Express-News, San Antonio Light, Houston Chronicle and Philadelphia Bulletin. He formerly was posted in various positions on the U.S.-Mexican border with Freedom Newspapers, and was a regular, independent contributor to United Press International.