The Scotland international striker has registered 17 goals for the Bluebirds this season - more than any other player - but admits he is currently behind Jay Bothroyd and Michael Chopra in the pecking order.
And having started from the bench of late he fully expects to be back there against the Hornets at Ninian Park in midweek, but he is determined to work hard in preperation for his next opportunity to impress.
"To be honest, I don't expect to be starting on Wednesday," said McCormack in the South Wales Echo. "The gaffer won't play me in my preferred position as Jay and 'Chops' are his two up front.
"I'm second fiddle at the moment with Jay and 'Chops' the favoured two ahead of me. All I can do is put my head down, work hard and wait for the next chance.
"It's a bit disappointing going from scoring 16 goals to being dropped, but I have to be professional about it and get on with it. I've scored 17 goals now and if somebody had given me that in my first season at this level then I would have been pleased with that."