Dru, I don't know how you can say that about Tiago. Do you think Mourinho would not only like, but continuously play Tiago at Chelsea if the guy fails at the basics of football?
mourinho didn't put him in a 422. he had makalele behind him and lampard next to him. at lyon he played in 433, at portugal he played in 433 (or 451 whatever)
he's not a bad player at all, actually he's very good at his natural position, but he's not polyvalent, not at all. above that i really doubt whether he's serie a material, but maybe i think that because he's played 'out of position'. But in most games he got completely overrun by the opponents' midfield, he was nowhere around.
but ok .. if it was up to you, you would probably build a 433 around tiago