Van Persie
Hazard
Mbappe
Van Dijk
Jorginho
We've done pretty well generally in the transfer market, apart from 2012, but for various reasons (maybe some beyond the club's control?) those five would definitely have improved us or strengthened the squad at the time we were interested in them.
It's less frustrating if a player snubs us for a favoured manager, or sunnier climate, nothing we can do, but baulking at an extra few million in fees is extremely annoying when rivals benefit from our reticence to say a big fuck off to ffp. Owner wants the CL trophy, we need CL final level signings.
We also spent a lot on some average and shit players, but all teams do.
RSC
Fernando
Mangala
Bony