Wiktionary
n. The highest ranking coach of a coaching staff.
Wikipedia
A head coach, senior coach, or manager is a professional at training and developing athletes. They typically hold a more public profile and are paid more than other coaches. In some sports such as association football, the head coach is also called the manager, while in other sports such as Australian rules football they are generally termed a senior coach.
Other coaches are usually subordinate to the head coach, often in offensive positions or defensive positions, and occasionally proceeding down into individualized position coaches.
Usage examples of "head coach".
Saint, as Dave Mansfield, the team's head coach, calls him, drops it into his glove.
You don't know how often I prayed that you'd never be replaced as head coach, after that.
How's he doing as head coach while Amos is laid up over at the nursing home in Farberville?
Since nobody else was close, Orin picked up the blocked punt's ball, which the Head Coach was gesturing impatiently for from his position at the midfield bench.
This broke the ice and other players came over to chat but the head coach broke it up, saying the players were there for work, not socializing.
I recognized John Madden, the head coach, running the offensive unit through short-pass drills on the field to my right.
The voice belonged to Sherri Costello, Head Coach of the Tropical Storm.
She's the founder, manager, and head coach of Kristy's Krushers, a softball team for little kids.