To clarify, it seems when we get a player on loan they often start off well then when we sign them they seem to get worse over time.
3 examples spring to mind immediately in Pim, Bennett and Dave. All 3 looked immense on loan then once they'd joined their form seemed to gradually dissipate.
Even some loan players start off well before losing a certain something ie Mcginn Bostock and even Berinho.
Exceptions to this are few and far between, with perhaps only Jeffrey Schlupp being someone who actually improved.
What are we doing wrong that we seem to actually hinder development of many players.