Well, the Giallorossi claimed their first European title in more than six decades on Wednesday night to crown Mourinho's first season coaching in the Italian capital.
Nicolo Zaniolo scored in the first half, goalkeeper Rui Patricio made some big saves in the second and Roma beat Dutch club Feyenoord 1-0 in Albania's capital to win the inaugural edition of the third-tier Europa Conference League.
It's Roma's first European trophy since winning the 1961 Inter-Cities Fairs Cup — a tournament considered to be the precursor to the UEFA Cup and Europa League. It's also the first title of any kind for Roma since winning the 2008 Italian Cup.
Besides the few thousand Roma spectators inside the small National Arena in Tirana, some 50,000 fans watched the game on giant screens at the Stadio Olimpico in Rome.
The goal started with a ball over the top from centre-back Gianluca Mancini that Zaniolo controlled with his chest and pushed it past onrushing goalkeeper Justin Bijlow with the tip of his boot.
An attacking midfielder, Zaniolo produced five goals and three assists in 10 Conference League games.
The 22-year-old has often been labelled as Italy's most talented young player. But he's been held back by two serious knee injuries, one of which kept him out for all of last season and prevented him from taking part in the Azzurri's run to the European Championship title.
Feyenoord came out energised after the break and hit the post twice, first with a close-range effort from Gernot Trauner then with a long-range blast from Tyrell Malacia.
Roma had lost their two previous continental finals, defeated by domestic rival Inter in the 1991 UEFA Cup and dropping a penalty shootout to Liverpool in the 1984 European Cup final in their home stadium.
Mourinho extended his perfect record in European finals to five trophies in five matches. He won the 2003 UEFA Cup and 2004 Champions League finals with FC Porto, the 2010 Champions League final with Inter Milan, and the 2017 Europa League final with Manchester United.