League One will become competitive only when other clubs have access to the kind of funds PSG has. Other clubs are not buoyant enough to buy quality players like PSG. However, we cannot rule out that a club might be lucky to have the right coach and some committed players who can give PSG a good chase for the League trophy. An example is what happened in the Bundesliga last season when Xabi Alonso used a set of unknown players and made history. Bayern Munich had better players and training staff but Bayer Leverkusen was fortunate to win the title last season.
Ligue 1 seems difficult become more competitive in the future behind difference financial condition between PSG and other Ligue 1 teams participants, recently PSG always dominance for winning domestic league trophy every season with good financial and easily sign any qualities players every season than other Ligue 1 team. I don't think any manager in Ligue 1 has miracle did the same by Bayern Leverkusen in Bundesliga after success breaking out Bayern Munich dominance more than eleven season, PSG performance in this season not really quit well and losses many points at the early season.
But the top fourth standings teams in Ligue 1 get inconsistency performance loss many points from unpredictable teams, I think if only loss points facing PSG but with other team left can secure three points seems has opportunity to stop PSG dominance in Ligue 1.