Hallenstein Glasson announces management shakeup, new group CEO Hallenstein Glasson announced new leadership changes, including the appointment of a new chief executive officer. The fashion house named current group chief operating officer Stuart Duncan as its new CEO effective April 1. Duncan held the role of group COO since 2015. The buying manager of Hallenstein Brothers Jason Barrow will also step up to the role of chief executive of the Hallenstein Brothers brand after nine years with the b
