100% a fraud. He won at a time when he had the best squad in Italy built by Conte and Serie A was its weakest. Any idiot could have won during his first run. He had two embarrassing CL finals, one worse than the other, and multiple embarrassing CL exits. The only one that wasn't embarrassing was the Real come back.
Look at his return when he doesn't have world class players at every position and Serie A got better. Yet, he still has a squad better than most of Serie A. In three years he could not adapt his tactics to get the best out of the team, no full 90 minutes of playing, no offensive movement, and the list goes on. Maybe he should get another three and he can finally come up with a plan to beat the Mighty Salernitana.