I personally don't know and can only suppose that at some level of the game(not the highest, but another leagues) there is no must for the team to have a libero and some of them choose not to have such a player. What do you think about it? I expect your opinion because I'm very interested in this question!
Libero Libero
Melgie
The Libero in Volleyball is like a GoalKeeper in Soccer, The Libero is the most skilled defender in Volleyball. And in the rules of volleyball the Libero must wear a contrasting outfit to the team
1998 saw the international introduction of the defensive libero player to the sport of volleyball.
The typical height of a libero in volleyball is around 5 feet 6 inches to 6 feet tall.
A libero tracking sheet is used in volleyball to mark down when the libero comes in and out of the game and who he/she goes in or out for.
Yes, the libero can set. However the libero may not block, attempt to block, or serve.
The Libero
libero
The average height of a libero in volleyball is typically around 5 feet 6 inches to 5 feet 10 inches.
There is not always a libero. It is the coaches decision to have or not to have a libero, just like it is his or her choice to field any other position on the team.
In volleyball, the libero wears a different color jersey.