I think it is indeed unfair for Jose Mourinho for 3 seasons Jose Mourinho survived with the players he had and only relied on loan players without being given support from the club to buy the players he wanted while the club demanded the previous coach to be able to perform as well as possible, isn't this not commensurate with what Roma did?
Any great coach will also have difficulty coaching a club if the club itself does not provide support, on the other hand, an ordinary coach is given enough resources, then the coach can build the club as a whole.
Maybe I can agree with you about Jose Mourinho, after 3 seasons with AS Roma he was finally fired because he was considered unable to improve the game, while at the same time he did not get everything he needed to improve the game even more, I will not say he did not get anything but in my opinion AS Roma is still lacking in providing support for him regarding players. In the transfer market alone AS Roma did not move much, unlike what they are doing now.
But on the other hand I am happy because maybe now they are a little aware that it is very necessary to sacrifice to bring in quality players to make them able to achieve a greater achievement. Now all has happened and now they are with De Rossi, what we hope now is that De Rossi can bring AS Roma in a better direction and can bring a proud achievement.