PSG's move to focus more on the Champions League is very appropriate because in Ligue 1 no team has been able to surpass PSG until this season and Brest itself will also be quite overwhelmed when having to face a team like PSG who in general have been much more consistent in playing in Ligue 1 this season. In addition, the next match for PSG is to be the home team with Brest as their guest and that certainly will not make PSG afraid because PSG is always better when playing at home with any opponent in Ligue 1.
Shifting 70% focus on the Champions League Competition would be great, but I'm not convinced with the squad. They should have gotten Victor Oshime from Napoli. The both strikers they have are not big game players like Victor Oshime. They would definitely go far this season in the Champions League Competition but winning it? It comes with a lot, sacrifice and special players in the squad who are all hardworking. Winning the League 1 Competition is nothing no new news to them truthfully. Brest did great last season, I don't know if they can do same this season.

First season in the League 1 Competition and he'll gradually become the face of French League 1 Competition and Football. He's scored five goals in the first three fixtures and I have no doubts hell do same again after international break.