Sotheby’s announced that it has named Alexander Rotter and Cheyenne Westphal the new Global Heads of Contemporary Art. Tobias Meyer, the auction house’s former Worldwide Head of Contemporary Art, stepped down at the end of November 2013. Rotter and Westphal have both been with Sotheby’s for many years -- Rotter was behind the recent sale of Andy Warhol’s ‘Silver Car Crash,’ which brought a record $104 million, and Westphal helped launch Sotheby’s new contemporary art galleries in London.

Helena Newman and Simon Shaw will helm the auction house’s department of Impressionist and Modern Art. Newman, who joined Sotheby’s in 1988, was instrumental in the February 2010 auction that netted $263.6 million, a record for a European sale. Shaw, who has worked at Sotheby’s outposts in Stockholm, Paris and London, orchestrated the 2012 sale of Edvard Munch’s ‘The Scream,’ which sold for an historic price of $119.9 million, a record for a modern work of art at auction.

Daniel Loeb, a hedge fund manager who is Sotheby’s largest shareholder, recently commented on the auction house’s need to establish new leadership and more efficient operations.