![Catherine and Ralph](https://www.seeher.com/wp-content/uploads/2020/12/catherine-sullivan-ralph-pardo-ceos-CONTENT-2020-1.jpg)
Omnicom Media Group is undergoing a major leadership realignment, naming new chief executives at two of its agencies.
The media agency network appointed Ralph Pardo as CEO of Hearts & Science and Catherine Sullivan as CEO of PHD, effective immediately.