About Roma and this game, that's much that's just being lucky. In fact, they have had good performances since De Rossi started working at Roma and his performance even made the fans happy to see their team get good results in the Serie A games which can even put Roma to be in a better place at the table if they can continue this good performance in the next games.
But in the game between Roma and Fiorentina, Roma was really lucky to get a draw in this match because Fiorentina had many more gaol opportunities than Roma, especially in the first half of the game when Roma was totally shocked by the good performance by Fiorentina.
I don't think it was luck, this draw was the result of De Rossi's ingenuity in making substitutions so he could score a goal to make it a draw. This draw is of course very good for As Roma, currently they are only three points behind Bologna. Of course, the potential for As Roma to overtake Bologna could happen in the next few weeks. Since being coached by De Rossi who replaced Mourinho, As Roma has performed better, it could be that next season As Roma will be even stronger.
Under De Rossi's tutelage, goalkeeper Mile Svilar continues to be a starter so his performance is getting better. When Mourinho became coach of As Roma he trusted Rui Patricio more to play, for me it is time for Rui Patricio to move next season and be replaced by someone younger. The reason is, Roma since being coached by De Rossi has continued to develop from 12 matches, only losing once to Inter, and that is natural because Inter this season is too strong in Serie A.