Their performance must be better than it has been so far, as AC Milan will also face more matches against teams of significantly different strengths. Therefore, Milan still needs to improve their abilities to be better than they already are, even though they won away at Lecce. If the Milan players can maintain their positive spirit, perhaps Milan can make a difference again when they host Bologna in their next match. But for now, Milan must not stop improving, as their overall strengths are still not that strong.
They've spent a good amount of money since the last season, that's why we see a change with their performance. What Milan don't have is their players mostly not good in scoring goals, Gimenez hasn't prove anything, unfortunately his teammates can't be relied too.
This is a big problem because this was the reason why they lose against Cremonese even though they were dominating.