It was once said of the Roman legions "The Legion is not composed of heroes. Heroes are what the Legion kills." Field Marshall the Viscount Slim, who commanded in the China-Burma-India theater in WWII, once wrote "Wars are won by the average performance of the line units." He wrote negatively on various special forces type units, preferring to use regular infantry and training them up to a good, but not superhuman, standard. Arthur Imperatore, who had a unionized trucking company in New Jersey, is profiled in "Perfecting a Piece of the World" (1993) for how he made his trucking company successful despite a very ordinary workforce.
There's an argument for winning by steady competently managed plodding. The competently managed part is hard. Steve Bechtel, head of the big construction company that bears his name, once said that the limit on how many projects they could take on was finding bosses able to go out to a job site and make it happen. Failure is a management problem, not a worker problem.