Saliba, Martinelli , Oedegard (loan), Guendouzi, Torreira were all decent Cebellos and Suarez were loans, Tierney is a decent left back then there’s Pepe who’s fee didn’t justify his return he actually scored 20 goals for Arsenal 3 less than Saka in 30 less appearances. But as you say we really don’t know how much of this was on Emery.