"This was a good example of where we're short," said Keane, his options limited as he attempts to inspire a change in fortune. "I don't remember Manchester City's keeper having to make a save. Craig (Gordon) didn't have much to do. But they've produced that bit of quality, that's the difference in this league.
"It's such a fine line. They're third and you might think there's not much between us on this evidence. But they've scored and we haven't and we've lost the game.
"The hardest part (in the Premier League) is doing it in the final third, that's why good strikers and playmakers are so hard to get. We lack those qualities at the moment. City weren't at their best out there.
"But these teams still have those moments of quality, even when they're not at their best. It was the same at West Ham (last month) and we lost 3-1 there. I've been saying the same thing in recent weeks."