Cheyenne Westphal, Sotheby’s former worldwide head of contemporary art, has joined the London-based auction house Phillips. Westphal left Sotheby’s back in March after twenty-six years with the company. Her exit took place amidst a number of shake-ups at Sotheby’s, including the resignation of its co-head Alex Rotter. Westphal will join Phillips as its new chairwoman.