Not that I care all that much for the RCC, but the only truly effective means of ridding the church of child predators is for the normal priests, nuns, monks, school teachers, etc. on the local levels to seek-and-destroy any pederasts they already know about, and regularly check in with random altar boys, choir members, students, etc. during confession and teacher/student meetings to monitor for any hidden pedos left.
Fuck the hierarchy, all the way up to Rome. Stop playing church politics. If the higher-ups are hiding and reassigning pedos, they are in fact at least pedos-by-proxy, and no doubt a lot of higher-ups are actual pedos. It needs to be about local police getting anonymous tips from the lower level church clergy, consecrated religious (nuns, monks), and teachers in parochial schools.