Coaching (n.) is yelling that has been issued a whistle and a clipboard.
Coaching (n.) is paid for by the parents, performed on the kids, and judged from the bleachers.
Coaching (n.) is being held responsible for outcomes produced by other people's bodies.
Coaching (n.) is saying the thing they already know, in a voice they can finally hear it in.
Lecturing (n.) is how a parent answers a question the child did not ask.
Lecturing (n.) continues long after the listening has stopped.
Lecturing (n.) is talking at people who cannot leave without a grade.
Lecturing (n.) is a monologue with assigned seating.
A Lesson (n.) is remembered by what it cost rather than by what it said
Lesson (n.) is also learned from those who brace themselves against you, and dispute passage with you.
A Lesson (n.) is learned, not taught.
A Lesson (n.) does more good when forgotten than do lessons learned.