 In 1914, Pitt athletic booster Joseph Trees and athletic director A. R. Hamilton hired Glenn Scobey "Pop" Warner as Pitt's head coach.Warner, who had previously led Carlisle, Cornell, and Georgia, had been successful at his previous stops, mentoring the likes of Jim Thorpe, and was known as an innovator of the game who originated the screen pass, single- and double-wing formations, and use of shoulder and thigh pads.His arrival at Pitt gave the program instant national credibility, lifting the perception of the program from a regional power to that of a national one.