For all they have spent, they have got rid a lot of their experience, and I'm really not sure on their squad.
Goalkeepers - Sanchez (+ 1 to come in)
Centre back - Thiago Silva, Colwill, Disasi, Badiashile, Fofana(long term injury), Chalobah
Right back - James, Gusto (one injury prone and one unproven)
Left back - Chilwell, Cucurella, Maatsen (Cucurella expected to leave)
Centre mid - Fernandez, Caicedo, Lavia, Gallagher, Chukwuemeka
Left wing - Sterling, Mudryk
Right wing - Ziyech, Madueke (Olise on his way in)
Striker - Jackson, Broja, Nkunku(Long term injury)(Lukaku not really part of the squad)
Obviously a lot of young talent, but that at the moment doesn't scream top four to me.