Former Denver Broncos star Karl Mecklenburg is confident that John Elway can match his Hall of Fame playing career with success as a football executive. "John is an excellent leader. He understands the game, and he's also had a lot of success in business," Mecklenburg said Friday in Billings. He said he has confidence in new Broncos coach John Fox, assuming that the NFL labor dispute is solved between now and September. "He has shown before that he can turn a team around," Mecklenburg said of the former Carolina Panthers coach. Mecklenburg also believes the Broncos will select a defensive lineman with the second pick in the April draft. "The writing was on the wall when they released two of their starters," he said. He also believes that quarterback Tim Tebow, a first-round draft pick last year, has the potential to be a star. "He has a lot of great leadership qualities," he said.