Conversation so far:
Did Dean Smith get started as head coach at UNC?
Dean Smith served a stint in the United States Air Force in Germany, later working as a head coach of United States Air Force Academy's baseball and golf teams.
Did Dean Smith ever teach basketball with the USAF?
Dean Smith worked as a head coach of United States Air Force Academy's baseball and golf teams.
How did Dean Smith get the job as head coach at the U.S. Air Force? Was he previously a soldier?
Dean Smith served a stint in the United States Air Force in Germany, later working as a head coach of United States Air Force Academy's baseball and golf teams.
Where did Dean Smith go on to coach after the U.S. Air Force?
Dean Smith's big break came in the United States. In 1958, North Carolina coach Frank McGuire asked Smith to join his staff as an assistant coach.
Did Dean Smith accept the position of assistant coach with North Carolina coach Frank McGuire or decline and joined later?
Dean Smith served under Frank McGuire for three years until 1961, when McGuire was forced to resign by Chancellor William Aycock in the wake of a major recruiting scandal.

Question: is that when he took over as head coach?
Self-contained rewrite: Was it after Frank McGuire was forced to resign that Dean Smith took over as head coach?