Thomas O. Hicks, chairman and CEO of Dallas-based private equity firm Hicks, Muse, Tate & Furst, announced Monday that he would retire a year from now to focus on his personal investments. Hicks, Muse & Furst is still attempting to recover from big losses that it suffered from investments in telecommunications and Internet companies. Mr. Hicks is majority owner of the Dallas Stars NHL hockey club and the Texas Rangers MLB baseball club, both of which have their share of financial problems at this point.