Complex sentence: Ewbank took over a team that had not had a winning record in its first three years of existence and hired a coaching staff that included Chuck Knox, Walt Michaels and Clive Rush, all of whom later became head coaches.
Split into simpler sentences: Ewbank took over a team that had not had a winning record in its first three years of existence. He hired a coaching staff that included Chuck Knox, Walt Michaels and Clive Rush, all of whom later became head coaches.