Are you kidding me...I hope you're aware that Chivu doesn't have the experience of coaching the senior team and playing in big leagues like what he will be facing this season. How do you expect a wonderful performance from him better than Inzaghi's performance last season. Inter was the most successful club in Seria A last season. Inzaghi is better than Chivu currently.
In terms of achievements and tactics, of course Inzaghi is much better, he has experience but experience takes time so it is not impossible for Chivu to surpass him, Inter Milan is the door for him to achieve and prove this, just like what Xabi did in Leverkusen, although the tendency of results will probably not be the same as Xabi but Chivu still has a chance in this new season, the target of the Scudetto is still realistic or at least finishing in the runner-up position is also an achievement for Chivu.