The Texas Rangers' vaunted DVD trio of John Danks, Edison Volquez, and Thomas Diamond is officially no more. Danks and Volquez were of course traded in deals that may or may not be considered successes. Diamond, though, was still struggling along in the minor leagues for the Rangers until yesterday, when they designated him for assignment. Obviously, this is just a roster move, not the literal end of his career, but it's a roster move that speaks pretty loudly for a 26-year-old who's never reached the majors, who missed 2007 entirely, and whose walk rate was an astounding 6.2 per nine last year and is even higher, at 7.1, this year.