The Blues have played some fine football in the opening 6 games of the season but have failed to score in their last 2 league games, losing 1-0 away to Arsenal and then Blackburn.
Eriksson has favoured a 4-5-1 formation so far but ditched that just half-an-hour into Sunday's defeat at Ewood Park, bringing on Emile Mpenza for midfielder Michael Johnson to boost City's presence up front.
"The only reason was that I saw in the last third of the pitch we weren't good at all," said Eriksson. "I tried to give Bianchi some help up there with another striker.
"It seems stupid to say but it was almost easier than I thought it would be," added Sven. "But any how, we lost the game.
"Maybe we are more beautiful than dangerous and that's not good. You don't get any points for possession of the ball.
"You have to have shots and combine well in the last third, we did that a little, but it wasn't good enough. We should have created more with all the possession we had."