Ford design boss Callum to retire; Renault veteran Lo named to replace him Ford design boss Callum to retire; Renault veteran Lo named to replace him January 25, 2021 dzadmin Comments 0 Comment Moray Callum will retire effective May 1. Anthony Lo, who most recently served as vice president, exterior design, for Renault, will join Ford on April 1 and have a one-month transition period before Callum departs.