He is responsible for developing, managing, and executing manpower and personnel plans, programs, and policies for the total Army.

Lieutenant General Thomas C. Seamands earned a Bachelor of Science degree in Business Management from the University of Dayton and was commissioned through the ROTC program into the Adjutant General's (AG) Corps.

He attained a Master of Science Degree in Management from Webster University, was the Army's Leadership and Management Fellow at the John F. Kennedy School of Government, Harvard University and a Fellow at MIT's Seminar XXI: Foreign Politics, International Relations and the National Interest.

Prior to his appointment as Deputy Chief of Staff, G-1, Seamands was previously assigned as the Director of Personnel Management, Army G-1.

Seamands combat deployments include Assistant Chief of Staff, CJ-1, Multi-National Corps – Iraq.