It has a lot to do with knowing that the team is balanced rather than cohesive, since you do not want a member that is Bantha forrage. Also, they should be able to grow professionally by learning from their peers.
I think the sometimes a team cohesiveness can balance out the of what is missing from the team. So it doesn't necessary requires that the team is balance for them to be better and even if they aren't balance in terms of aggressiveness and defensiveness, they can still make up or focus on what they missing or their strength.
By the way, I don't know the term "Bantha Forrage" and I have to look it up on google to know what it meant. Anyway, if I am correct to assume what it means then I completely agree with you not needing and wanting someone like that from the team. Imagine having a teammate that has a mindset of YOLO or yelling "leeeeerrroooooyyyyy jeeeeeennnkkkkkkiiiiiinnnnsss" in any match will surely ruin the teamwork, efforts and strategies.
They need to cooperate with the other player to give the best performance to the audience, and the important thing is they can win and beat the opponent.
If they can do that, that will benefit us because we can select them for our bet, and we will have a chance to win.
The team cohesiveness can give the team more power to do better, and their opponent will see that they can change their play in the rest of the match.
I think the coach will know who the player can give cohesiveness to the other, so all of the players can play with their best skills as a team and not individual.