Make learning tangible
Give a player one or two observable tasks. A setter might focus on the quality of the second contact after an imperfect pass; an outside hitter on choosing between power and placement.
Evaluate what players control
The score does not tell the whole story of courage, focus and decisions. After each set, briefly discuss what worked and which decisions you would like to repeat.
Make progress visible
Use short observations or simple statistics to show development, while remembering that data should start a conversation rather than define a player.
Results matter, but are not the only measure
Competitive players want to win. That makes it even more important to protect learning goals under pressure. Long-term performance grows from well-developed skills.