About being predictable I can say many teams are unpredictable and they have unstable performances and PSG is one of them but the average of their performance was good enough to be on top of the table in the French league as the first team, PSG lost many points because of the bad performance we from this team before, the match between Lyon and PSG was one example for performance in PSG, but against Lens, they have to win the game.
At this time Lens is right below PSG in the standings while second in Ligue1 and yes PSG must be able to win the game this weekend so that the gap in points can continue to be created even though PSG can still be at the top of the standings if they lose this weekend's game. However, PSG must be able to try to win at home in this match besides having to get full points in the match because Lens is not far behind PSG in the standings.
Lens might be directly under PSG, but PSG still has a lead of six points. That is certainly something that PSG is not going to throw away. I agree that PSG has been very inconsistent, I say “vary“ because that’s what it seems like, considering the fact that they have some of the best in the world in their squad.
The team that PSG had made, was supposed to win everything. But they are able to hardly win anything other than the Ligue One title. I don’t think they will be pressured by limbs. But it is also not very impossible.