I really don't understand why Daniele De Rossi has to be Mourinho's replacement. Because as far as I know, Daniele De Rossi also didn't produce good results in his first career as a coach at SPAL, a club in Serie C group B. But yes, young coaches can sometimes make surprises. For example, Arteta surprised us all in the Premier League.
Maybe being AS Roma coach is a great honor for Daniele De Rossi. This will be his first experience as a coach at a big club. And Daniele De Rossi actually has long experience as a player at AS Roma for 18 years. But I still doubt whether it will be a good thing for Roma or the opposite.
IMO in this case we donot know what the real intention of Roma is but maybe this is the best decision and they must have thought about it from the beginning that when De Rosi was in the squad it must have been under further consideration when he was appointed to replace Mourinho as coach of Roma.
Looking at his current statistics or coaching he is indeed a new coach and surely this will not be too much if it is talking about statistic but in the end when Roma have chosen De Rosi as the new coach then they must fully believe in what he is doing.
This is indeed a heavy burden especially in the matter of coaching that is done where he is a new coach but we have also felt it before when Xabi was brought by Leverkusen but the results were even beter than expected so it could also affect Roma because Rome is not a foreign place for De Rosi.
What we need to see is now how De Rosi perform whether in the end he is able to or even worsen the atmosphere of Roma because when talking about speculation there will certainly not be many people who are sure about De Rosi at this time.