Every coach should have a fairly broad view like Graham Potter, he buys players who can fill in several positions and not just one position, so when the match feels difficult he can set a strategy by entering players who can fill these various positions and Nkunku is the best option so far, but I don't think chelsea will be satisfied with just one player, they will definitely buy more players in the future.
it is difficult to get players who can play in several positions at this time so when Chelsea managed to bring in Nkunku of course it was a fortune, being able to play in various positions would certainly make it very easy for the Graham Potter to formulate the right strategy for Chelsea game, the arrival of Nkunku I think will be able to replace the position who was left by Lukaku or maybe Potter will prefer to play Nkunku in a midfield position later, while playing at Leipzig Nkunku has played a very important role and I think next summer he will give the same thing to Chelsea later.