Mourinho has been in this kind of situation severally and he came out victorious. I remember when he had such a situation with Manchester United that he either wins the Europa League or he will not be in the next season's champions league. That is the situation now, and I believe his attention is in Europa League and funny enough he knows how to play home and away with his defensive tactics and also he knows how to play finals. So, Roma's chances to success in the Europa League is very high.
Yes, in the case of Mourinho and Roma, everything goes according to the well-known pattern - he gives results even with weak teams.
The only thing that surprises me is Sevilla - what is wrong with this team? It is obvious that they are weaker than Juventus, but even in the away game they could win with a score of 2-0 if they were a little more successful in the first half (although Juventus missed a couple of chances at the very beginning of the meeting). As a result, it turned out to be a draw, but before the return game, Sevilla is almost the favorite in this pair, lol.