They, like all teams have misses as well. They have taken a huge risk here, it's a lot of money for a 19yr old CB that has never played in PL, has a known concern re pace.
The data says he will be special, but lets be clear, we have been watching him play way more than Brighton for the last 3+ years, hard to believe they are a better judge of him than us.
Basically the fee, plus sell on, plus buy match clause protects us amazingly well.