Complex sentence: In 1969, newly arrived Redskins coach Vince Lombardi noticed that Brown, a talented but underperforming running back, was starting slightly late behind the snap of the ball.
Split into simpler sentences: In 1969, newly arrived Redskins coach Vince Lombardi noticed that Brown, a talented but underperforming running back. But Lombardi noticed Brown was starting slightly late behind the snap of the ball.