Alderweireld and Wanyama he worked with at Southampton, so no real judgement needed there. Out of Son Moura and Tripps I'd only call Son a real success.In that case we would never have signed Alderweireld, Wanyama, Son, Moura and Trippier. It's also widely reported he wanted Mane, Winaldum, Martial and Fernandes.
He has made some mistakes for sure but if you remember of the 7 players we bought from Bale money only 2 were ultimately successful. Perhaps it's more about the wages we can afford that's the determinant of the success of a transfer rather than the transfer fee.
Probably the best manager at building a squad was Harry.
Also he turned down players like Tielemans.