Possibly, but with the current squad these are possible too:
Chelsea 2-0 Qarabag
Atletico 2-1 Chelsea
Chelsea 2-2 Roma
Roma 2-0 Chelsea
Qarabag 1-1 Chelsea
Chelsea 0-0 Atletico
26 September. Man City v Shakhtar Donetsk
30 September. Chelsea v Man City
31 October. Manchester United v Benfica
5 November. Chelsea v Manchester United
Perfect
Think Liverpool and Spurs won't survive that group.
Good draw for us imo. Rather have Atletico than PSG, bloody Barca and Sevilla at the moment. Yes Roma, quite a bad draw at the 3rd pot, but I believe Conte will have some plan.