It is not easy to convince Mou to stay in Roma, the best way to do that for a coach like Mou is to give him an open check to sign any players of his choice but me and you knows too well that Roma cannot take that step so it is expected that Mourinho will leave unless Roma brings in more quality players for him to increase his team depth.
For me I will love Jose Mou to leave Roma and continue his adventure in another team. I love to seem him in different teams and different countries adding spices to different leagues.
Latest news Mourinho reportedly will stay in Roma the decision was taken after Mourinho and management had a meeting but it is not explained what kind of decision
We can only guess that Mourinho might get what he wants next season like budget for signing new players or other things it seems Mourinho believes that Roma can achieve success next season although they are not competing in the Champions League.
A coach of the class of Jose Mourinho needs the full support of club management to do what he wants without any restrictions, and if he doesn't get that then he won't stay long in the team. Of course for a coach this is important because he can apply existing strategies without being hampered by anything, that is very good for the progress of the team. But AS Roma itself is not that easy to let its coach move alone, they are still limited in certain respects. I understand this, maybe they are hampered by something they cannot do freely, such as the club's finances for example, or other factors.