Inter Milan coach Simone Inzaghi says the derby against AC Milan will be a good barometer.
Inzaghi says they'll learn whether they've improved the clash.
He said: "Time and the pitch will tell.
"We know we have changed many players, because changing 12 players is never easy. We know that for now they are only two new players started from the start, as well as having lost very important players, because we needed them.
"But at the same time the club has been very good at working, putting in young players and other more experienced ones into teams who will help the starters.
"It is normal that we started well and are working well, but time will give the answer to this question."