Milan manager Massimiliano Allegri wants his side to cut out errors following their 3-1 victory over Cagliari on Sunday.
Goals from Robinho, Philippe Mexes and Mario Balotelli were enough to ensure Allegri's side picked up their first points of the season at San Siro.
However, Allegri was disappointed after Marco Sau struck in the 33rd minute to put the visitors back in the game before the break.
While Balotelli's goal just after the hour mark settled any Milan nerves, Allegri wants his side to tighten up and make opponents earn their goals.
"The team's performance at the beginning of the second half of the match hasn't been very good, even if better than the last part of the first half," he said.
"We have made a couple of mistakes and this is something which shouldn't happen. As I always say to my guys: the opposing team should only score goals because they are making a great performance, not because we concede them to do it."
Milan completed the signing of Kaka from Real Madrid on Monday following a three-year spell at the Santiago Bernabeu.
Allegri said prior to the deal's completion that the Brazil international would add "technical value, personality and experience" to his squad.
"The self-esteem of the team will also increase," Allegri added.
"These are all important aspects. We would have an excellent group of forward players - the same I had in my first year with this team."
|34||N. de Jong||70'|
|Coach: M. Allegri|
for Robinho 66'
for A. Poli 78'
for R. Montolivo 88'
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