Norwich defender Ben Gibson believes they must improve "right across the board" to maintain a promotion push in the second half of the season.
They are fourth in the Championship, one point behind Blackburn, who they meet at Carrow Road on Saturday.
"We're not naive, not everything is rosy because we've won the game," Gibson told BBC Radio Norfolk.
"We've not kept enough clean sheets, we've not been clinical enough at times, and even our general controlling game (needs to improve).
"Right across the board there's things we can improve, we have to demand more from ourselves.