If he is great does spending £4m more matter? If the club are where Fosun want us to be by the time he can be classed as a success and that £4m or whatever is required, then fucking happy days, Boro get to have a few of European Football ££££.
If he is poor, he will be gone loooooong before any extras are needed and you can pretty much guarantee that we will get back pretty much all we gave to Boro when he gets sold back to the Championship to a newly relegated team with money to burn to get back up.