Roger A. Oxendale, CEO of Children's Hospital and president of the Children's Hospital of Pittsburgh Foundation, will resign from both positions at year's end. Oxendale, 55, oversaw the move to the new 10-acre, $625 million campus in Lawrenceville this spring. Oxendale joined Children's in 1995 as CFO. He became the hospital's CEO and president of its foundation in 2005, four years after the hospital had merged with the University of Pittsburgh Medical Center.