An example of what might constitute credibility. He could publicly order (!!!) bishops in the U.S.  to support (!!!) extensions of the statute of limitations (as opposed to their current attempts to obstruct extensions) and to provide total (!!!) transparency (as opposed, for instance, to the scam that Dolan is trying to pull in NYC).  And if the bishops do not immediately (!!!) follow through, he should remove them immediately.  Then he might have some credibility on this issue.

As has been said over and over, words without real actions to back them up, are not worth much.  That is, after all, why, after three years of preaching, Jesus went to the trouble of hanging on a cross.