Jones in a three man midfield, right? Even so, this would be his first game there for us, and given the brevity of the game, it's always going to be a risk if he's never had a few games before to get used to it....
With that in mind, I'm not despondent regarding the team selection. It's a containing team, made for high energy and solidity. Liverpool can't hit the ground running for the entire ninety minutes, therefore, it seems good to bring the big guns on in the second half when their midfield and defence are tiring....
I see the logic in Fergie's choice of selection.