Roma's game is still quite good. there are good players like Dybala and Lukaku in the team. Mourinho's departure didn't have too big of an impact on Roma's game. but you can be sure that Brighton will make things difficult for Roma in the next match. but if Roma can get up now, maybe Roma will become a competitor to Liverpool and Leverkusen.
However, in the group stage, we saw a bad game from Roma. and now they are rising again to try to enter the European League trophy competition.
Not only Mourinhos departure didn't do any damage, but they actually became better after he left as well. Which really isn't great for Mourinhos legacy as well, dude has been around for a long time and he still ended up being wrong in most cases, I feel like it wasn't really all that easy to handle.
I personally believe that the best thing to do in this case would be Mourinho to go to Saudi Arabia, because they would hire him just based on his name alone. De Rossi on the other hand may have a much better career after this, because he took over a team that weren't doing that well, and ended up having some great wins, and even streaks, to keep the team alive and doing well. These all matter to him, and should be important.
Undoubtedly, AS Roma have been delivering more impressive performances since Jose Mourinho was relieved of his duty as the club manager but that I don't think makes Mourinho a bad manager. The Portuguese manager during his time at the club gave his best for the club to make sure they stay relevant in European football but unfortunately for him, his best wasn't just enough for the club. In his first full season at Roma, Mourinho helped the club to win the first edition of the UEFA Conference League trophy and just last season, he led the club to another European final which happens to be UEFA Europa League final against Sevilla but sadly for Jose Mourinho, his team lost that final. This season, we saw Roma underperforming especially in the Italian Serie A and that's why the club management had to sack him.
Talking about a Jose Mourinho's potential move to the Saudi Arabia league, though I'm not tryna totally write off, but I still think it'll be extremely difficult for a manager like Jose Mourinho to leave European football to become a manager in the Middle East. Currently at Roma, Daniele De Rossi is doing well at the club and should the club continue with their current performance, I think they'll go far in the UEFA Europa League competition. But I still do not consider them as one of the top three clubs that can win the competition this season