Nolan Ryan, Astros franchise icon and co-owner of two of the team's minor league franchises, today exited his personal services contract a year early to assume the team president position offered by the Texas Rangers. Ryan will oversee the daily operations of the floundering Arlington-based team, working with mercurial owner Tom Hicks. The fate of his owner's stake in the minor league affiliates is up for debate, but the assumption is that they will remain......