Texas Notes: Postolos, Ryan, Lewis, Lowe

Having dropped their last five games, the Astros own a .256 winning percentage, easily the worst in baseball.  Their new division rivals, the Rangers, are at .632, tied for second in baseball.  The two numbers are not unrelated, as the Rangers have won five of six contests against the Astros.  The latest on the two Texas clubs:

• The Astros announced yesterday that president and CEO George Postolos resigned.  Postolos' role with the Astros had little to do with baseball operations, unlike some other team presidents.  Postolos "specializes in franchise acquisition," wrote Jon Paul Morosi of FOX Sports, and his skill set no longer matched with the job description.  One of Postolos' tasks involved carriage agreement negotiations, trying to get the Astros and Comcast Sportsnet Houston into Houston homes.  CSN Houston is available in "only about 40 percent of Houston's 2.2 million TV homes," writes David Barron of the Houston Chronicle.
• Asked on ESPN's Galloway & Company show yesterday if he has any interest in the Astros' new job opening, Rangers CEO Nolan Ryan replied, "I don't think so."  Ryan has not been in contact with Astros owner Jim Crane.  There was some springtime drama about Ryan's role with the Rangers, which was resolved in April. 
• The Astros are running "extended evaluations" at all three outfield positions, writes Brian T. Smith of the Houston Chronicle.  J.D. Martinez, Robbie Grossman, and Jimmy Paredes will hold the starting spots for now, with Justin Maxwell to regain center field when he returns from a fractured left hand.  The Astros have already moved Chris Carter to first base and jettisoned Rick Ankiel and Fernando Martinez, though Martinez cleared waivers and remains in the organization.
• Carter, a 26-year-old acquired from Oakland in February as part of the Jed Lowrie trade, is tied for fifth in the league with nine home runs.  He also leads all of baseball in strikeouts, however.
• 33-year-old Rangers righty Colby Lewis, a free agent after this season, "has been diagnosed with a mild case of tendinitis in his right triceps muscle" according to MLB.com's T.R. Sullivan.  Lewis last pitched in the Majors on July 18th of last year, before undergoing flexor tendon surgery.  His current issue is not related to the surgery, and Lewis could make another rehab start next week after receiving an anti-inflammatory injection.
• Rangers long reliever Derek Lowe told Drew Davison of the Fort Worth Star-Telegram he didn't pass the "stats test" when hunting for an offseason job, explaining he leans toward the human element.  Apparently mixing stats and scouting, as all teams do, Lowe commented, "If you pump my numbers into the system compared to, let’s say, Tanner Scheppers, of course his stuff is going to outscore my stuff, I’m not naive.  He’s a young kid who throws 98 mph with a great breaking ball. Listen, I know I don’t pass the test."