True, what Paris Saint Germain has to do is change the whole team, not just make changes on the front lines. It's useless that their front line is very good but in the midfield and back they are weak. Focusing only on star players will not make them better, they need to make transfers according to what is needed, not just look at their status. There are several star players who failed when defending PSG, not just one or two players.
No matter how ideal PSG's front line is, it cannot prove capable of winning the Champions League trophy because PSG always misses its midfield. What they have done is good enough, but it cannot be said to be perfect if they only focus on the front lines with the superstars. So if you really want to have that mentality in the UCL, solid players also need to be implemented on every front. Reflecting on the clubs that have beaten PSG, of course we can see from the midfield that was built to play solidly.