Polly..I am sure Fergie is facing the same dillemma...Personally I would play both of them...owen hargreaves is a great player...very hard working..he is running about all the time...very similar to Gennarno Gattusso...I would play right in front of the defense..like a defensive midfield player..the one who steals the ball from the midfield of the opposition and plays it front and is back again guarding Ferdinand and Vidic...Carrick as we saw in the Roma game has a sharp long range shot and that can teamed up with Scholes in the middle...Ronaldo on the right...Giggs on the left...there u have it 3-1-4-2 formation.... But this formation will not work in Europe as the teams in Spain and Italy are just ruthless when it comes to counter attack...so having a four man defense is very necessary...I just hope heinze stays...