There are four midfielders vying for the three midfield spots, five if you include Anderson, which we have done as, of Wednesday morning, the results of a scan on the knee he injured against West Ham had not been confirmed.
Michael Carrick has made the most appearances in the Carling Cup so far this season. Out of five matches, he's played four times (three starts, one as sub). Anderson has made three starts, Darren Fletcher and Darron Gibson two apiece, while Scholes has started once and come off the bench once.
There are ten permutations for the midfield three, so make sure you get the balance right when you vote in our poll.
Also, with Rio Ferdinand suffering an injury set-back with his persistent back problems, you will have to consider a late change at centre-back. We've started a new centre-half poll for you to make your selection.
Discuss your Wembley tactics in depth with fellow United fans on the dedicated Talking Reds message board thread.