He replaces Gavin Hattersley who announced in April that heas its next president and CEO effective Oct. 1. He replaces Gavin Hattersley who announced in April that heas its next president and CEO effective Oct. 1. He replaces Gavin Hattersley who announced in April that heas its next president and CEO effective Oct. 1. He replaces Gavin Hattersley who announced in April that heas its next president and CEO effective Oct. 1. He replaces Gavin Hattersley who announced in April that heas its next president and CEO effective Oct. 1.