A goalie must have a strong leadership personality. He is the only player on the field with a 360-degree vision of the whole pitch, therefore he must continually coach his teammates and other players on how to position themselves effectively on the field. A goalkeeper needs to see everything that is going on in order to make the right decisions during important moments in the game. There are several reasons why a goalkeeper needs a full view of the field. He needs to be able to spot attackers about to score goals or take shots at goal. The goalkeeper also needs to monitor the behavior of his teammates and opponents in order to correctly assign them to different positions on the field. Last but not least, he needs to communicate with his assistants (if there are any) easily and accurately through hand signals or words. Goalkeepers usually have a good memory for events that have taken place in previous games or matches. This is why they often make the same mistakes over and over again. The goalkeeper needs to be able to see these errors so that he can correct them before they cause too much damage to his team's game plan. In conclusion, the reason why the goalkeeper needs a full view of the field is because he must see everything that is happening in order to make the right decisions during important moments in the game.