Carroll scored one and was controversially denied another in the defeat to Chelsea.
"Credit to Andy who came on and played brilliantly well," said the captain of Carroll's introduction.
"He changed the way we played. We were a lot better with him in the team, we were a lot more direct, we created more, we were more of a threat.
"I think his form the last two or three months has been fantastic and he is certainly pushing for a place back in the England squad in my opinion."