God doesn't need a Pope to speak for Him. That's the role of the Holy Spirit and the Bible.
When we start substituting the words of a man, even a GOOD man, for those of God, only trouble can follow.
It just so happens that in "the bible", Jesus specifically states that PETER and HIS successors will be the spokesman for the church AFTER Christ is gone. (Peter became the first bishop of Rome...guess who holds the title NOW?) That's the section you Protestants like to ignore, while nevertheless complaining that Catholics pay no attention to the bible.