He had 6 goals and 3 assists in 53 starts (and 12 sub appearances) for Palace the two years after we sold him. Safe to say he wasn't good enough at the time to start for us.
But not having a proper buyback clause for 15 or 20M, considering we sold him for 3M going up to 6, should go on the list of feckups. People will say he didn't want to come back, but we have new management in, probably could mend fences, or we could have just sold him abroad for a big profit. Palace were surely eager to get him back for the small fee we charged them, have to think we could have made a better deal.
Not every player we sell has to have a buyback, and I know we get a percentage of his sell on fee (which I guess might save us a few mil on Wan-Bissaka it seems), but a very raw dribbling winger in his early 20s with obvious potential is exactly the kind of player you would expect to potentially improve. He wasn't Cleverley. More like a Demarai Gray type where he's not good enough to play real minutes for a top 6 team or even start for a top 10-12 team, but the tools are obviously there and in 3-4 years, who knows?