Inter Milan coach Roberto Mancini was pleased with their 1-1 draw against AC Milan.
A magnificent Jeremy Menez volley was wiped out by Joel Obi, as Mancini begins with a Milan derby draw.
"Derbies are always difficult and this was no different," Mancio told Sky Sport Italia.
"I am very happy with the way the team moved, as with five days together to change a system after a year and a half playing 3-5-2 was not easy. They all did very well.
"I don't expect to change a team completely in five days, especially when the systems are different. It will take time, but our objective is to win as many games as possible quickly, even if we're not at 100 per cent.
"It takes a while, even though many of these players have already used a four-man defence, especially on international duty. It just takes time and I honestly don't know how long."
