I've watched 90% of Juve's matches this season and to my humble eye Gatti seemed to be similarly solid defensively to Kalulu but he's been undeniably better in offence and forward runs. Both have 1 goal scored but Gatti has 2 assists vs Kalulu's 0. His leadership abilities are also much higher than Kalulu's and his aerial threat at set peices is also superior.
Also his overall Match rating is 6.79 on Whoscored.com vs 6.64 for Kalulu.
Source:
https://www.whoscored.com/teams/87/show/italy-juventus
Please don't bring whoscored ratings as an argument, this site has one of the most bullshit ratings I ever seen.
The problem with Gatii is not his rating, nor even his stats, but the fact that he is clumsy as fuck when defending. He can do well for most of the game stat wise, but he is out of position so many times, he misses crucial headers.
I can't understand how can we even debate this after one good game when he made like 5 or more crucial errors in the last 5 games and few of them were already goal costing mistakes. He is Torino level player and yes I agree we would be then dreaming of him here, but once he joins a big club he would be exposed. Mancini level for me, nothing more.