This transfer seems obvious. We would have Quenda, Dalot, Dorgu, and Diego/Amass as wingbacks, with occasional support from Shaw and Maz. This setup allows us to consider Mazz as a center-back, forming a group of Maguire, Yoro, Licha, De Ligt, Mazz, and Shaw, with additional support from Academy players. I assume Lindelöf and Malacia will leave.
We will have a strong mix of youth and experience, which should make us quite solid. Additionally, with Mainoo moving to the #10 role, a new midfield signing could provide extra cover in tough matches.
Probably he is the second most promising 17 years old player in the world. I like signing young wingers from Sporting, I am not sure why.