DOT&E Leadership

An official website of the United States government

Here's how you know

Official websites use .mil

A .mil website belongs to an official U.S. Department of Defense organization in the United States.

Secure .mil websites use HTTPS

A lock () or https:// means you’ve safely connected to the .mil website. Share sensitive information only on official, secure websites.

The Honorable Nickolas H. Guertin
Director, Operational Test & Evaluation

The Honorable Nickolas H. Guertin

Director, Operational Test & Evaluation

VIEW BIO

Dr. Raymond D. O’Toole, Jr.
Principal Deputy Director, Operational Test & Evaluation

Dr. Raymond D. O’Toole, Jr.

Principal Deputy Director, Operational Test & Evaluation

VIEW BIO

Mr. Garry Bishop
Deputy Director, Operational Test & Evaluation, Land and Expeditionary Warfare

Mr. Garry Bishop

Deputy Director, Operational Test & Evaluation, Land and Expeditionary Warfare

VIEW BIO

Dr. Mitch Crosswait
Deputy Director, Operational Test & Evaluation, Net-centric, Space and Missile Defense Systems

Dr. Mitch Crosswait

Deputy Director, Operational Test & Evaluation, Net-centric, Space and Missile Defense Systems

VIEW BIO

Mr. Chris Henry
Deputy Director, Operational Test & Evaluation, Naval Warfare

Mr. Chris Henry

Deputy Director, Operational Test & Evaluation, Naval Warfare

VIEW BIO

Dr. Sandra Hobson
Deputy Director, Operational Test and Evaluation for Strategic Initiatives, Policy and Emerging Technologies

Dr. Sandra Hobson

Deputy Director, Operational Test and Evaluation for Strategic Initiatives, Policy and Emerging Technologies

VIEW BIO

Mr. G. Arthur McGettrick
Deputy Director, Operational Test & Evaluation, Air Warfare

Mr. G. Arthur McGettrick

Deputy Director, Operational Test & Evaluation, Air Warfare

VIEW BIO