I don't doubt he will improve, he certainly should under the tutelage of the worlds finest coach. He has some excellent footballing traits but I don't think he is good enough to be in our front 3. I don't mean to be disingenuous with that comment, I don't think he has enough pace, strong enough finishing or his clinical goal scoring ability is strong enough. His decision making will improve and a future Gundogam replacement certainly a possibility, but again I'm not sure he is good enough for number one choice for our starting front 3 again.
I personally don't think we would have been so desperate to sign him if he wasn't English, which is a big plus point with the perceived imminent departure of Sterling.
I did answer the question, all the money comes from the same pot and like it or not we are constrained by FFP. I'd hate to see us lose out on Haaland because we have overspent on other areas.