July 16 1980 Named Dick Motta as head coach. Motta would have a record of 267-307 (.465) in the regular season and 10-14 (.417) in the playoffs with Dallas from 1980-81 - 1986-87. He would resign 5/20/87. [He would again be hired as coach 5/17/94 and coach 2 seasons.] 1980 Named Bob Weiss as assistant coach. [Dallas would only have 1 assistant.] 2013 Shane Larkin underwent surgery on his right ankle to repair a fracture. He would be out until 11/18/13. 2014 Re-signed DeJuan Blair and then traded him to Washington for the rights to 2009 draft pick (#57) Emir Preldzic. 2015 Re-signed J.J. Barea to a 4 year, $16 million contract. 2015 Announced that Mavs president and CEO Terdema Ussery would be leaving the team to join Under Armour. Ussery had been with Dallas for 18 years. Chief financial officer Floyd Jahner was named as Ussery's replacement.