The market's changed though, and Lacazette's not getting any younger or better. But yeah, there's certainly a market for him, the question is more what we'll get for him, because we'll have to reinvest it and quality won't come cheap. And while Soumare is a good shout, look at Pepe, there's no guarantee he'll be good in the PL.
As for Xhaka, Hertha have lots of money, and are a joke of a club, so they might actually pay 25 million or thereabouts for him. They might not be stupid enough now that Bobic is in charge though. Oh, and they might yet go down.
It's all semantics though, as I said, I agree with you that we need to get rid of guys like Luiz, Xhaka and Laca and reinvest that money smartly. I just think it's imperative we at least get into EL on top of that. Ideally we just win that fucking shit cup this year and are back into the CL anyway.