Jose Mourinho has a clear vision and mission and even though Roma is not a wealthy team that has a lot of money, so far the Roma team has improved a lot after the last 2 seasons when coached by Jose Mourinho
Mourinho is a very experienced coach and he has a successful career with a strong belief in his tactics. He clearly knows what he needs for his squad and he is good to boost player mentality for a common interest of the club. If a club totally supports Mourinho with his management and force their players into discipline, Mourinho can bring success to a club. His career shows this from Porto, Chelsea, Inter Milan, Real Madrid, Manchester United and Roma. When a club supports players and don't support Mourinho, bad results will come as we saw some times in Chelsea, Manchester United, Tottenham Hotspur.
Modern football with abundant money from rich club ownership gives too much power to players and managers, coaches nowadays have more difficulty to control dress rooms of their clubs. It is only harmful for a club success and if you need best example, look at PSG.
but now Mourinho has been rumored to move to another team, there is a team that is eyeing him, namely PSG, I really regret it if the coach leaves because it is very likely that Rome will fall back if left by Jose Mourinho.
Mourinho found another successful chapter for his career in Rome with AS Roma but he is ambitious and want to get bigger success with Roma. He needs more money for transfer to buy players and build up a stronger squad. His future in Rome will depend on his meeting with Roma director board members and a promised transfer budget he gets if he stays in Rome.