My perspective is the opposite.
The club let a key player basically walk - i think that is where the famous Beppe quote "the will of the player" originated
we never replaced what Carlitos provided in stats, productivity, passion and edge.
in return we received two long bets. vadala never saw the light of day in our stripes (like most youth prospects), while bentancur (depending on who you ask) has either failed to live up to expectations or is meeting them at the low bar that we obviously didn't realize back in 2015. The sell-on share clause is salt in the wound. 40% of 10m vs 25m is still a large portion either way. It's poor business without the hindsight