“We only need the Pope there is no need for other people to help him.”
The pope is the leader of the Roman Catholic Church, he works with the cardinals and the bishops to decide upon dogmas through the magesterium. It is the pope’s job to translate the scriptures and tradition to modern day Christians. Early Bishops of Rome were called vicar of Peter, which meant representative of Peter. For later popes the Vicar of Christ was substituted as it was more authoritive title.