How much do coaches impact success in sports?

Study finds leadership has sizable effect on pro and collegiate teams

In a new study, Harris Public Policy scholars estimate that coaches account for 20 to 30 percent of the variation in team outcomes.
Summary
How much do coaches impact success in sports?
Article Name
How much do coaches impact success in sports?
Description
Coaches have a significant impact on success in both the professional and collegiate ranks, a University of Chicago study finds, providing new insights into the never-ending debate over how much leadership matters in sports.