We're starting to figure out the rhythm for the new, 36-team Champions League and its league phase. The early matchdays aren't particularly do-or-die and the stakes are low, but the less work you get done early, the more you leave yourself later on.
Paris Saint-Germain took only four points from their first five matchdays last season, had to rally late to qualify for the knockout rounds, then had to face Liverpool in the round of 16. That they knocked Liverpool off on the way to winning the title doesn't change the fact that they didn't make life easy on themselves.