I think a few people are seeing 1-0 results and thinking Man U are off form, but as Dave just pointed out they've had 5 successive clean sheets. It seems to me that the 6-1 thrashing by City was a wake up call to Fergie and he's gone back to basics, no more gung-ho attacking for the moment and keeping it tight. Rooney rarely joins the attack now, more content to sit back and orchestrate.
I still fancy us to get a goal or two myself but it's by no means a foregone conclusion. I'd consider them a wounded beast, that 6-1 must have hurt.