Costello modestly attributes much of his success to having been surrounded by "good people" over the years. Truly amazing is the only way to describe the tireless efforts and dedication to the corps by the many people behind the scenes who have stood on the sidelines in support of Costello all these years; people who just plain love the Caballeros and would do anything for them. People like Bob Murray, who played in the corps during the forties and fifties, and has done an exceptional job as business manager ever since; Joe Campos who marched in the corps in the early sixties, then became the equipment manager and right-hand man to Costello; Jim Russo, Ralph Silverbrand, Frank Pisillo, Bobby Peterson, Lou Storck, George Hayek, Frank Gerris, Bill Durborow, and many, many others.