Here is a question, and don't focus 100% on the specific players but think of players of the ilk (value) of those mentioned.....
Suppose we sell:
Niasse, Cleverley, Delboy, Funes Mori, McCarthy and Tarashaj for a combined 60M (plus Kone leaves on a free)
and buy:
Van Dijk, Klaassen, Pickford, Sandro, Onyejuru for 110M while adding Ghezzal and Taylor on a free
That is a net spend of 50M. Are we happy with the resultant team? 6 out who don't feature (plus Mori who i don't think i would sell, but for the exercise he is sold) replaced by 7 in, 4-5 of whom would likely feature regularly.
Sure we may not really get VVD, but then we might not get Sandro either. Together they are 60M - hard to imagine getting a striker and CB for less than 60M combined. I can't imagine we would spend more than 50 net and seeing what 50 net gets us don't believe we can afford to spend less and advance our cause.