"I say to you: whatever you bind on earth, heaven will keep bound and whatever you unbind on earth, heaven will keep unbound. In like manner, I say to you: if on earth two of you are united in asking for anything, it will be granted to you by my heavenly Father. For where two or three are gathered in my Name, I am there among them." (Matthew 18:19-20)
*From The Christian Community Bible Catholic Pastoral Edition
Jesus does not seem to have said anything whatsoever to his apostles about structures that would emerge (or even disappear); nothing but a community spirit. Welcome for the poor and lowly, never-ending forgiveness and acceptance of others, prayer of a community that has apostolic ambitions and cries to God to give what is asked of him; there we have the sum total of the wisdom and means the Church has in order to confront all that challenges its evangelization.