Everyone thinks they know best when it comes to team selection, right? We've all professed to know a better line-up, a more fitting formation, or finer tactics when Sir Alex's team-sheet lands on matchdays. And yet we're continually proved wrong by the boss.
That's why we're going to ignore all our collective past failings, brush them under the carpet and ask you, if you were United manager, what would your team be for Sunday's all-important Manchester derby?
There are plenty of big decisions - particularly in midfield and attack - and Sir Alex may still be debating them in his own mind and with his coaching staff in the days leading up to Sunday. Or, based on past experience, he might have had his team selection done and dusted weeks ago.
Either way, in our latest open debate, we want to know who you think should play and why. Post your views on the Talking Reds thread. Here are some of the best comments we've received so far...
My team is: Foster; Fabio, Vidic, Rio, Evra; Valencia, Fletcher, Giggs, Park; Berbatov, Rooney. I think United will win 2-0. Maybe I'm too optimistic but that's my prediction."
Posted by Monte_Cristo
Foster; O'Shea, Evans, Vidic, Evra; Valencia, Fletcher, Anderson, Giggs; Berbatov, Rooney. Prediction: United 4-3 City. I think there'll be a lot of goals as both teams love to attack.
Posted by AidanNelson2009
Foster; Neville, Ferdinand, Vidic, Evra; Fletcher, Anderson, Carrick, Giggs; Berbatov, Rooney. We should play as we did against Spurs, winning the ball in midfield, finding space to play one-twos. If all goes to plan we'll win 3-0!
Posted by keong
Foster; O'Shea, Ferdinand, Vidic, Evra; Valencia, Carrick, Anderson, Nani; Giggs, Rooney. That's what I think Sir Alex will do. But I'd love Owen to start alongside Rooney and run City ragged.
Posted by ManUtdBoy7867
Foster; Brown, Ferdinand, Vidic, Evra; Valencia, Fletcher, Carrick, Nani; Owen, Rooney. Owen would be delighted to have another league start and would be a lively partner to Rooney up front.
Posted by wolfieb
Foster; O'Shea, Evans, Vidic,