 There was also a racial factor in the rotation, as Buck O'Neil was one of the coaches but was never promoted to the "head coach" position.Wrigley finally relented and named one person as sole "head coach" in 1963, but did not completely scrap the experiment until Leo Durocher took over in 1966 and emphatically declared himself manager, with Wrigley's support.In the mid-1960s, the Cubs began showing signs of life, sparked by Banks, Williams, and Santo and the emergence of ace pitcher Ferguson Jenkins.