De Rossi had a good start with Roma but there is still many doubt about his management ability. Before Inter Milan, Roma will meet Salernitana and Cagliari, that will be two other big tests for Roma and their young coach. I will be surprised a lot if Roma get maximum points from next two matches. Inter Milan are very strong in this season and they are like dominating Serie A so facing them after a head coach position was changed, is not good for Roma. Even with Mourinho, Roma will struggle to gain points from Inter Milan.
Some people think that because the opponents faced by AS Roma were not too strong so De Rossi easily beat them, especially since Hellas Verona has only been able to win four matches in Serie A. But if you look at when playing at home to Hellas Verona, AS Roma suffered defeat while still being coached by Jose Mourinho and this shows that De Rossi had a good start in coaching AS Roma. I see the match against Inter Milan which will be a little more difficult because currently Inter Milan is really strong and difficult for any team in Serie A to beat.
Yes, De Rossi is the temporary replacement coach for Jose Mourinho and we'll see if De Rossi can be better than Jose Mourinho and Roma give the opportunity to temporarily see Roma's development during his coaching. In the next 3 matches, in my opinion, the toughest is against Inter Milan and the other 2 clubs, Salernitana and Cagliari, are not too tough because these two clubs are in the relegation zone so I think Roma can still beat them and when facing Inter Milan I doubt Roma can beat them.
De Rossi has to prove his ability to coach and I think this is an opportunity for him if he wants to become one of the coaches to be taken into account. The match against Inter Milan is quite difficult because currently they are at the top of the standings with a fairly consistent form of play. But nothing is impossible as long as the players have the motivation to beat them and at least De Rossi can provide resistance which ends in a draw in the match which is more than enough.