Millwall manager Kenny Jackett feels his side lack a cutting edge in the final third of the pitch after the 1-0 defeat to Sheffield United.
Andy Reid netted his first goal for United and the only goal of the game in the 29th minute to give the Blades their first win in five games.
Jackett said: "The bottom line is results and it's important to recognise that. A lot of our play is right and in the first half we created chances but as the game went on you could see the confidence drain out of us.
"Sheffield United weren't really a threat but they didn't need to be. We had half a shout for a penalty and it did look a penalty to me. It looked like we needed a break like that.
"While we're disappointed with the result, two thirds of our play is pretty sound. We need to go past people in the final third and be a bit more spontaneous.
"We couldn't break them down enough and we needed a bit more quality and pace to go past people and take them out. We've scored one goal in two games and that's a tough ask - if you don't score it can creep in and inhibit other parts of your play."