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.
I never thought De Rossi was that experienced or good enough to manage the club As Roma. But damn me to forget that he knows the club very well in and out and has been a legend.
It was the right call for the management of As Roma to show Jose Mourinho the exit door. This is the same Rossi using the same players within the squad to go ahead on the league standing.
Jose Mourinho should take a season or two of for real from coaching amd managing duties, he should go on vacation and work on his return back to football.
Many Chelsea fans are currently calling out for his return back to the Premier League Competition and that would beba great one definitely.