Looks like Cavani is closer to joining PSG now. Good news tbh because I was pretty uncomfortable with the club spending 53m on one player. Should go for Lewandowski if we can and spend the rest on De Rossi. If not then we should go for someone like Gomez. Experienced, wouldn't cost a huge deal, proven in the CL and wouldn't hamper Lukaku's development.
Also, after giving it more thought, in our 4-2-3-1 formation, I'd prefer if we had the following lineup:
--Lukaku--
--KDB--Mata--Hazard--
rather than Oscar on the wing/attacking mid. Think he should be put as a CM for most of the time and play back up to Mata other times. Good thing about the one above is that all three can play on the wing / AM to a good level (although LW with Mata isn't certain), unlike Oscar who's mainly suited to just the AM role. And this way, the idea of interchanging would probably be more effective. Oscar as a CM as well would mean the 3 amigos still would (hopefully) retain chemistry with each other.