Allardyce was the master of getting careers back on track.
Clough is in a big pond and has likely lost his mojo... with 48 pros in the squad no matter how much he trained he probably got overlooked, so what the hell? the moneys good.
Wifey brought a used car from a dealer who is a director at Forest a couple of years ago and he reckoned Clough was one of their better buys.
Get him at the right price, sprinkle some magic dust, build him back up and give him a chance