the right stuff
Personal attributes or character traits that are considered necessary to succeed or do something well. We are having all applicants write an article for the magazine to see whether they have the right stuff to be hired full time.
the right stuff
character traits considered to be prerequisites of manliness, notably courage and resolution. The phrase was popularized as the title of a book ( 1979 ) by Tom Wolfe , in which the qualities were attributed to US test pilots, but it existed before then.