There are certain types of wolf flows, and Leadership is such a thing ....

The three wolves of the first red circle are the oldest, the sick, the weak. They were given in front of them due to their speed the rest of the team will run. Their experience is more. 

They are the strongest and warlike type of five teams of yellow spots behind them. Their work is to support the team ahead and to deal with any attack. 

Right behind them, the middle group is the most protected. 

Because, the green marked group behind them is very strong and warrior kind. Protecting them from the back of their work. 

The blue-headed wolf party leader behind them. He's coming back to everyone. His responsibility is whether anyone is falling behind or not. That leader.  -

Leadership is the matter.