Have you seen how high we defend? It's our lack of pace through the middle that causes most of our problems. None of Stones/Kompany or Otamendi are super quick but Evans makes them look like Usain Bolt.20mill would be good business for a massively PL experienced 4th choice CB. He's not reliant on speed, never has been, so if it turns out he can do a job for us, I can see him being here for the next 4 years.
Finally getting a couple of fullbacks who don't look like they are running through treacle will help but the thought of Evans having to stop a counter attack doesn't fill me with any confidence at all.