In high school, my team was getting killed at half time. The coach correctly said our effort was horrible and started 5 non starters in the second half.
I sat on the bench with the other 4 starters all the way until there were just 5 minutes left in the game. I don’t think I ever played so hard in my life after getting back in that game. The score ended up being lopsided but it would have been lopsided anyways with the effort of the starters.
I don’t remember many of my HS games 30+ years later but I still remember that game. The coach sent a clear message about effort and I got it.