This lad is a pacy Otamendi, not sure if Pep would want a bull in a china shop with limited skill but he needs pace for the high back line.
He's better on the ball, and Otamendi of 2 or 3 years ago with pace and ability on the ball is one of the best defenders in the world.
I think he's less polished than Koulibaly, who would just drop straight in and with the experience of playing under Sarri, I know he'd be great from day 1. This guy doesn't have that experience so might take longer to bed in, and might need a few rough edges smoothed out - like going to ground in his own box, or high up the pitch.