US – In the latest in a tumultuous period of senior management churn for the global measurement firm, Comscore’s chief operating officer, Kathryn Bachmann, has resigned one month after taking on the role.

Bachmann had joined Comscore in February as chief commercial operations officer. According to the Washington Business Journal, Comscore does not intend to replace her.



The company is dealing with significant change in its senior team after the sudden departure of its CEO Bryan Wiener in March, which was accompanied by its president, Sarah Hofstetter, also leaving. Wiener was Comscore’s fourth CEO in five years.

With revenues still falling, it announced last month that it was cutting its headcount by 10%.