But Carragher feels as though Rashford would have a bigger goalscoring impact than the Manchester City star.
"I felt at the World Cup, Sterling was virtually playing as a centre-forward," he added.
"My feeling at the time was you might as well play a centre-forward there. We have seen that Rashford is going to score more goals and is going to be a bigger goal threat - and this team doesn't score a lot of goals.
"It scores a lot of goals from set pieces and I don't know how long that can continue. Without Harry Kane, when you see the squad, there's not many goals there at all.
"Rashford gives you goals."