1. How much success money can buy? None.
PSG decided to splurge (for the nth time) on a mastodon-size superstar, the GOAT of the sport, and after a year and a half, it still feels like they will keep trying without learning a single thing from it.
A few years ago, in the summer of 2017, Neymar arrived in Paris from Barcelona for the lump sum of €222m only for him to miss more than 750 days injured and more than 115 games while rehabilitating from his never-ending maladies. You might think such a "big" club, backed by one of the richest boards (read: countries) in the sports panorama, would have at least come up with a couple of takeaways, right? Wrong. Veeeeery wrong.
Unless Paris Saint-Germain and president Nassr Al-Khelaifi are playing a fame and money game (which he is) instead of a purely sports-based one (which he is not that interested in, by the look of it), then this project has failed over and over and always stumbled upon the very same obstacle: flashy, shiny, bling signings based more on past performance than present/future upside... and reaped the minimal rewards for it.
The model isn't working. Bringing superstars is not going to win you the Champions League. Manchester City have not won it, but at least they have claimed some Premier League (aka British European Super League) titles in their (still ongoing) pursuit of the UCL. Winning the Ligue 1 alone is a failure, whether Christophe Galtier wants to believe that or not.