By Eric M. Johnson EVERETT, Wash. (Reuters) – A Boeing Co executive said there was no need to revamp the cockpit crew alerting system in its forthcoming 737 MAX 10 jet, as the U.S. planemaker races to complete its certification before a year-end deadline. “I personally have no belief that there’s any value in changing the 737,” Mike Delaney, Boeing’s chief aerospace safety officer, told reporters at its hub north of Seattle. There’s no data that says switching to another system is safer, Delaney said, adding that the company was still evaluating its options. The embattled U.S. planemaker is fa…