Quite a few have commented about his relationship with problematic players. But the ones he clashed with like Pogba and deli ali also caused problems for subsequent managers. Actually even during his Chelsea, inter and real Madrid era, he was also quite harsh to some players. Shevchenko, joe cole, quaresma and casilas comes to mind.
I think one thing that puts him in a disadvantage these days is the 25 man squad rule. That means he cannot cold storage a player like he used to. And he cannot have specialised players for specialised positions. Once injuries happens, the formation is decimated. You would notice his decline started around the time of the 25men squad rules.
Not sure if there has been clashes with players at roma but roma results has been quite erratic.
He is from the school of hard knocks.
If the squad have some senior players with his mindset, then it will work.
If not, the strawberry gen will be hurt by his abuse.
The new gen need a lot of emotional support.
And they are not so self driven like Ronny.
So, JM approach with his players may not gel any more.
Seems like Roma players are starting not to get along with their gaffer liao.