What sort of reform?

CNA: The Siena Option: What one saint did in the face of a troubled Church

If there was already a problem with how Latins understood the authority of the bishop of Rome at the time of St. Catherine, it would seem that this fundamental problem was not addressed.

An aside: The clergy as other "Christs" -- can this be developed in a way that would find grounding in the Byzantine tradition?

Godzdogz: Fruits of Study 6: Suffering and Love in St Catherine of Siena