Now he struggles with personality? Based on what? The guy has been a model teammate, and everybody I've heard speak within the organization has raved about his professionalism, the way he's trained and comported himself while riding the bench.
Maybe people should dial down their expectations, when we're talking about somebody who turned 23 in the summer, and is playing in a crucial position for one of the biggest clubs in the world? Think that might be fair? I highly, highly doubt he has some huge issue with self-confidence. Things will get a bit nervy at times while he's still trying to stake his place, but he needs to get minutes and make mistakes to grow. The guy is trying to break into what has been the best club defense in the world (IMO) -- certainly top 3 -- for awhile. A defense that is obviously in disarray, given an aging and declining right back, a 36 y/o Barza, a 33 y/o Chiello, and a Bonucci defection.
Also, while it's obviously a team game, we haven't dropped a single point with Rugani in the lineup. So it's not like he's been costing this club wins.
Patience.