LifestyleDallas Mavericks CEO Terdema Ussery Leaves For Under ArmourMichael TolbertJuly 20, 2015July 21, 2015 by Michael TolbertJuly 20, 2015July 21, 2015221 Long time Mavericks executive Terdema Ussery ends a successful tenure in Dallas to join sports apparel giant....