Boss Frank Lampard demanded more from Chelsea despite his side reaching the FA Cup semi-finals.
Ross Barkley’s third FA Cup goal of the season earned the Blues a 1-0 win at Leicester.
But Lampard was unhappy with their first-half display, making a triple substitution at the break with Barkley, Cesar Azpilicueta and Mateo Kovacic coming on.
“That was much more like us, in terms of tempo and speed and pressing. We know we can score goals but in these first three games we just haven’t been as clinical,” said Rodgers, who admitted Maddison will be a doubt for Wednesday’s trip to Everton with a hip problem.
“It’s disappointing to go out but there are positives. I feel for the players because I think they deserved more than that.
“The players have maintained that belief in themselves and we just couldn’t make the breakthrough.
“It was much more like us and we looked a real threat. That final pass or effort wasn’t falling for us.
“We need to show more conviction, but we have shown all season we can score. It’s a performance which will give us more confidence going forward.”