The kids are a lot better than many people think. And what more, their improvement are often so drastic, people can rarely foresee their potential. I haven't seen Rio Mavuba a lot, but I liked his set of attributes, and I would hardly be surprised by end of the next year, he might end up being better player than Frings. Frings is a quality player who woud have produced consistently. But its hardly the end of world that he signed with Werder, as there are many viable alternatives left. Beside, Zanetti is already proven Serie A calibre player. We can afford to a risk or two in CM unlike our backline, which is filled with a bunch of no-hopers.
If anythingelse, it seemed to me Secco was the one who was after Frings, not Deschamp. No disrespect to Secco, but I think a man who won CL multiple times, WC, Euro Finals, and Scudetti knows a thing or two more about good players, than some random scout. I trust in DD, and if he thinks Mavuba is good enough, then why not buy him?