They might not be in that bracket as we understand it, but understanding and sanity fell into the PL black hole a while back. We're seeing £50mill average Joes who can do the basics because a lot of the dross in football today can't even do that. Lukaku can run, fight, jump, shoot, take on a defender, bog standard stuff from just a few years back. If Heskey was playing today he'd be a £50mill playa.
The Gotze thing is interesting too. He's one of the superstars (slightly better than average) players who has lost out in the game of musical money chairs. He could well join Liverpool just to get his seat back. We're heading fast for the £1mill per week contract. It has almost happened in China and when the new Euro League kicks off and the the PL starts sucking all the new TV cash down to the agent/ player singularity insanity is going to be the norm.
I don't think we can even come close to competing for these big names. I think we've missed that boat. It'll cost maybe £60mill for that top striker we want to see. A top CB might cost £50mill, we've seen the devastatingly mediocre Luiz go for that twice already. If we go the big name route we may need to spend £200-300mill to put all the pieces together and there's no way Kroenke and crew will sanction that, let alone our "I'm staying" manager.
Whoever (or whatever) spotted Elneny is probably our best bet now. I'd settle for a whole team of Coquelin, Bellerin, Elneny type finds. Not the top level but then again I think the difference between the top level and the second tier (excluding your Messis and Ronaldos) is blurring. Leicester and West Ham and Southampton etc are demonstrating that.