The Rangers have hired Josh Hamilton's father-in-law, Michael Dean Chadwick, as a special assistant. As Hamilton's accountability partner, Chadwick will handle part of the role that Johnny Narron vacated when he became hitting coach of the Brewers this offseason. Chadwick will travel on the road but isn't likely be in the clubhouse quite as much as Narron, who was also a hitting instructor. Hamilton has a history of drug and alcohol addiction and has worked to be sure he stays on the right path. "We had dinner with the Hamiltons before the winter meetings and we suggested that name and they had him in mind as well," Rangers general manager Jon Daniels said. "Both parties reached the same conclusion."