Logo of the Omaha Mammoths, who were a charter member of the Fall Experimental Football League, which is trying to become a developmental league for the NFL. The Mammoths played only one season, in 2014, finishing in second place. They quietly folded up operations following that season, with team ownership citing travel costs as the reason. The team’s roster included Alonzo Highsmith Jr., son of the former college All American, and a receiver named Gerald Ford – no relation to the former president.