Keep the 'ITK' tweets out of transfer threads please. There's a dedicated thread for that nonsense.
Does Sessegnon play LB or is he more of a winger now? Ajax seem fine in the fullback positions.
I'd say that depth in the middle of the park, particularly creatively, is also an essential signing. Bruno carried us for large parts last season but towards the end he was running on fumes and Lingard, Pereira and Mata were inadequate options. We can't rely on Bruno and Pogba to stay fit all season and play every minute of every game. I'd have it on par with RW, with CB and then LB following in terms of priority. DM is huge on my list too but it seems that'll probably be a target next season (hopefully someone like Zakaria).