No, not the network with Flash and Arrow. The Congregation for Divine Worship and Discipline of the Sacraments.
While a good thing to see in that Cardinal Sarah is a good, holy, and orthodox son of the Church, it is also a weird pick to the extent that he is not a liturgist. This is sort of like taking a family practice physician and then telling him to work in a Level 1 trauma center. Sure, he knows some of the stuff going on. He can figure out a lot through experience. However, the whole environment just isn't his niche or area of expertise.
We will probably have a better handle on all this when we see what happens to his old job as the head of Cor Unum.