He has definitely done an excellent job on Giroud in all of the derbies. Obviously Giroud did make the assist for the goal, but Giroud is a quality, experienced striker so you can't keep him quiet for 90 minutes 5 games in a row.
Very happy with Acerbi as I thought he'd be rusty but it wasn't noticeable.
A lot of it comes down Inzaghi already having a long-standing relationship with him, knowing exactly how to implement him into his team, and Acerbi having a strong enough character to integrate himself quickly into the side. Not sure he’d be excelling as much as he is elsewhere. Not trying to diminish his achievements, he’s a skilled and drilled defender with loads of experience. Hopefully his physique holds up.
He just offers nothing as an LCB. He's terrible in the attacking phase and is put in more difficult positions defensively compared to when playing centrally. Even the simple passes from him are so heavy and make it difficult for the receiving player to get under control.