I'm assuming Ronaldo, Carrick and Rooney will all start. And that Gibson and Welbeck would be on the bench at best.
The point is that the match is today. In the last week Macheda has scored a hatrick and the winning goal in the last few mins against Villa, and impressed even before that. Had circumstances been different then he wouldn't even be under consideration for a place on the bench but this is the current environment. Lots of players appear to be short of confidence. Several are injured. Others are exhausted.
It was a risk to put Macheda on against Villa with 30 mins to go. It is far less of a risk to use him to get the crowd buzzing etc today. We are not a team playing well.
Put it this way, if Macheda starts would you expect the atmosphere to be more electric than say if Scholes is used in a 3 man midfield, or if Tevez is selected?
Do you want us to have a go at Porto or sit and hope to keep a clean sheet, and perhaps nick a goal at some point?
What are you on about? Yes, we've got Rooney, Tevez, Welbeck, Macheda and Ronaldo who can all play upfront so what has that got to do with Scholes? Why go off on a tangent about a rare few bad performances?