CarMax welcomes John T. Standley to its board of directors   RICHMOND, Va., 2016-Aug-06 — /EPR Retail News/ — CarMax, Inc. (NYSE:KMX) today announced that its board of directors has elected John T. Standley to membership on the board, bringing total board membership to 12. Standley will serve on the Audit Committee. Standley is the chairman and chief executive…