He said: "Probably the strongest part of the club at the moment will be in the striker department. I could play any combinations.
"Chicharito has done nothing wrong. Welbeck is promising and shown that with England.
"They are not first-team choices at the moment. That doesn't mean to say it will stay that way because competition is always healthy.
"Being the kind of young lads they are, they are desperate to establish themselves in our first team.
"That is what competition is. We had it in 1999.
"It did a lot of good for Andy Cole and Dwight Yorke because they knew Teddy Sheringham and Ole Gunnar Solskjaer wanted to play and they did get a lot of football."