She served as the acting Director for the United States Office of Personnel Management (OPM) from July 10, 2015[1] to January 20, 2017.

in economics from Princeton University in 1980 after completing an 117-page long senior thesis titled "An International Monetary Fund Substitution Account: The Proposal and Its Prospects.

During her tenure, she worked with corporate, not-for-profit and government entities on key strategic, operational and organizational issues across a range of sectors, including financial services, healthcare, legal services, real estate, telecommunications, and philanthropy.

She continued to be acting director until the inauguration of President Donald Trump on January 20, 2017, and was succeeded by Kathleen McGettigan.

Cobert was elected to a four-year term as a member of the Board of Trustees of Princeton University in 2017.