Vieira commented today at training that he thinks a 3-3-4 works when you have two players playing the 9 role. He said the team has been working on three different formations that they all need to be comfortable with depending on the opponent.I think a 334 sounds insane, but for it to be a 334, I think it has to be 4 forwards, not a central midfielder that you are calling a forward. Using the same personnel at a 343, and saying, one MF will play higher so he is forward, isn;t as bad sounding as a 334 sounds, but I wouldn't call that a 334.