Roma should play more ambitiously especially in big games. They haven't been much successful in such games so far. For example they were really weak against Napoli despite playing a home game. Mourinho made the team play too cautiously and this brought their end. I hope we can see some changes when the league games are back.
They should win more big matches but let me remind you that Napoli won against many big clubs, not only Roma.
Of course, Napoli have won so many big games so far. I just wanted to give it as an example for Roma. Because they needed different strategies against the most in-form team in the league. Mourinho needed to prefer a more attacking style rather than playing defensively. He just becomes so obstinate to make his players apply his usual strategies from the old times and this drags down Roma even more.
Mourinho isn't like a manager who would love to try new things very often. Therefore we will see what they will do from now on.