Complex sentence: During Pond's tenure as coach, Yale produced back-to-back Heisman Trophy winners, end Larry Kelley in 1936 and halfback Clint Frank in 1937, the second and third winners of the most prestigious indiviual award in football.
Split into simpler sentences: During Pond's tenure as coach, Yale produced back-to-back Heisman Trophy winners. End Larry Kelley in 1936 and halfback Clint Frank in 1937 were the second and third winners of the most prestigious individual award in football.