I doubt you're blind, Eze will be moving into the central channels while Calafiori will give us the width when needed, either way Eze can do both.
We have Madueke and Martinelli for LW, he is not seen at Arsenal as a LW first, can play there sometimes but he was bought as an attacking midfielder.
4231 with double pivot Zubi/Rice and Eze as free role 10.