As I understand it, Archer will go back in the summer (1 July) as the terms of the deal under which we 'bought' him from Villa states that in the event of our relegation then Villa will buy him back off us for 3 quarters of the original transfer fee. So, the accounts (for FFP purposes) will show that we paid £18m for the lad last summer, and also show that we sold the lad back to them this summer for £13.5m. In reality, we have paid single instalment of £4.5m for his services plus whatever his wages were.
I can see why some would think it was a bit of a waste of money, but when you consider that we spent £4m on Traore and £2m each on Garbage and Slimane, then a £4.5m fee for a half decent forward from the championship with a get out clause if it went tits up, wasn't as bad a deal as some make it out to be (when you consider just how much some players get transferred for in the PL anyway). It was a punt on him helping us stay up or even finish higher up the league in final placings, but in truth, it was never going to be enough as we didn't strengthen other areas. Its like we toyed with the idea of looking like we wanted to stay up, but in all honesty we were as good as down from last August.