From Longman Dictionary of Contemporary Englishofficer/executive etc materialofficer/executive etc materialGOOD ENOUGHJOB/WORKsomeone who is good enough for a particular job or position He’s a good soldier, but not really officer material. → material
Examples from the Corpus
officer/executive etc material• Apart from the player's recent dip in form I don't believe he is officer material.• After being promoted to Sergeant-Major, Cottle was summoned before a board to see if he were officer material. 