Under Rooney, Birmingham City scored less and conceded more frequently
Blues saw a sharp increase in goals against, expected goals conceded, and also a worrying increase in errors.
On average they also scored less under Rooney, and registered a significantly lower expected goals per 90 statistic.
The split bar chart shows that under Wayne Rooney, Birmingham City scored less frequently, and conceded more often. In addition this result was reflected in poor underlying data, and an increase in errors.