What are you talking about? You're just making stuff up. The only competition Rugani didn't play much in was CL. Max opted for experience there.
Rugani played 2nd most minutes in Serie A of all our CBs. Only behind Chiellini.
Chiellini: 2162
Rugani: 1935
Benatia: 1754
Barzagli: 1434
Shaky? While he did have his shaky moments, like every other defender on the planet, our record of 20 wins - 4 draws - 1 loss in all competitions with Rugani starting shows he was nowhere near as shaky as some of you are making him out to have been. And in those 25 matches include starts against Roma, Inter, Lazio, Milan, Torino away (conceded only twice in those 5 matches).