Home/American Shipper/Brewer out as CEO at JDA American Shipper Brewer out as CEO at JDA FreightWaves Staff · Wednesday, May 14, 2014 Baljit Dal will replace Hamish Brewer as JDA’s interim chief executive officer. No reason was given for Brewer’s departure. He’s spent the past 20 years with JDA, including more than a decade as its CEO.