This is the profile of player we should be targeting:
Young talents who are creative and productive 1v1. Sarr is neither.
ASM would be perfect, and might have been obtainable. No way Mike Ashley, of all people, turns down a decent offer in the middle of a financial downturn. Ousmane Dembele would also feature highly on this list - right between Saint-Maximin and Mbappe as a high volume, high creative player - but didn't complete the minimum number of games to be eligible.
We need a 'chaos creator' - as Wenger famously dubbed it - against low block teams to create space and force mistakes.