AS Roma improved a lot since the dismissal of Mourinho. Even that draw against Fiorentina was kinda appreciated since they scored two goals even though they were close to lose it until the last minutes.
Roma have to secure a place for one of UEFA competition next year. In my opinion, picking Bologna spot and go to Champions League will be a great achievement, otherwise securing the actual Europa League spot have to be done quickly.
It is true that since Mourinho was replaced by De Rossi, Roma has experienced a lot of progress in its performance and emerged from its downturn at that time. Everything was visible when Roma played against Fiorentina, even though Roma was behind Fiorentina, they tried hard to continue attacking and put pressure on Fiorentina's back line. Until the end of the match, Roma managed to hold a draw even though they were playing at home to Fiorentina, this is proof that De Rossi has indeed succeeded in making a difference to Roma's current performance. Roma looks like they will compete with Bologna again for 4th place in the standings, because the difference is only 3 points behind Bologna. This is a big opportunity for Roma to maintain consistent performance so they can continue to win in the next match. In this way, I am sure that Roma will definitely be able to overtake Bologna, who is currently in 4th position, and at the same time get a ticket to UEFA next season. If this happens, De Rossi will definitely be proud to be able to bring Roma to success and even better in the remainder of this season.
Previously, many people doubted De Rossi, but in fact he was able to do this job in an extraordinary way. Roma's performance since the change of leadership has really improved quite rapidly, Lukaku and Dybala have become increasingly bright up front, making the attack line sharper. Now De Rossi just needs to increase the competitive mentality of his troops so that they don't get sluggish when they enter the crucial period. If this consistency can be maintained then the opportunity to qualify for the Champions League next season is quite open, especially since the gap between Bologna is only three points.