I expect Will will want to see first-hand what he has got in pre-season training and go from there. Perhaps he believes he can work with and improve the performances of what we would consider the weaker players.
There is no link at all with him so all a moot point, but a team in financial crisis enough to be relegated might have a fire sale so not as expensive as you might feel.
Seems good money for a striker who has hit double figures in the top flight only once in his career. Pretty much what Solanke went for the season before.