Luft, if we have let's say 200m to spend this summer.
Would you rather spend:
1) 200m on proven players and 0m on youngsters and trying to win a Cl while we still have Messi?
2) spend 100m on proven players and 100m on lottery youngsters?
3) spending all money on Arthurs, Rodrigos, Frenkies and similar and screw shortterm future, Cls and Messi?
Remember, when Messi will be gone, we'll suck and then you will have all the time and money in the world for Arthurs, Rodrygos, Saviolas, Keirrisons and similar.
You can't have both.
Rodrygo costs like 2-3 Lenglets or like 1 De Light.
Also, Rodrygo (who, lol?) costs almost the same as Thiago.
For example, who do you think will offer more in the next 3-4 years?
Arthur, Rodrygo or someone proven like Thiago?
It's not that simple and just go out and buy Dembele for 150m, Lemar for 70m, Rodrygo for 60m, Arthur for 40m, Frenkie for 40m etc.
Even these guys alone cost 360m.
You can buy let's say Thiago, Eriksen and Bale for that money.
Have them and win trophies for 5-6-7 years.