Graham Potter faces a struggle that both Frank Lampard and Thomas Tuchel ultimately failed at as well. There's a lot of previous transfer mistakes to make up for or overturn, but chief among them will be finding a way to get the best out of Kai Havertz.
Two years on from joining Chelsea and it's still not clear what his best position is, if he needs a partner, if he's capable of being a goalscorer in England or what makes him tick.
Havertz has largely been used as a striker in some sense. Often a false nine but sometimes with a partner and on occasions in a fluid front three.
