As I said, he will need better players for his system to be effective at the level he dreams of.This isn't necessarily true at all.
And to be clear, yes, there are clubs that buy the best players for the highest fee and the biggest wages in as many positions as they can on the pitch - but it is not the only way at all.
Arsneal didn't splash their cash until they had already allowed Arteta 2.5 seasons to get his tactics right and imprinted on his young, inexpensive side. Saka, Martinelli, Odegaard, Saliba, Gabriel - all cheap as chips and very low wages initially.
Same with Liverpool right now - look at their signings the last few years, the fees and the wages - Salah and VDV are the difference makers, for sure, but none of their other important cogs were comparatively big transfer fees and wages.
Then you can look at Man U who have done the opposite and splashed ludicrous amounts of money on fees and wages and produced very little in relative terms to that outlay - they certainly have not achieved any kind of stability or consistency.
We need to wait and see what happens next.