But then, you are likely to fall in the other categories, which makes the Cup easier for you. The Cup and CL becomes more difficult if you have a team capable of challenging for a league that involves a higher average quality or some opponents having high quality teams in the previous season. Usually, 5-6 stars teams are the ones that face more difficulty in the cup, and sometimes the C.L. 4 stars (especially lower 4 stars) and below teams are expected to have easier Cup competitions, independent of the situation that you have mentioned (2 favourites meet in a knock-out round before the final).
I would definitely not aim for a treble then. My target has always been the league, and each time I've failed.
AH AH — manager of Atlético Kolkata. Named in honour of my hometown club, Atlético de Kolkata, which won the inaugural edition of Indian Super League in 2014.