We need to sign three world class players to finish fourth.
Will Wenger take the easy option and do nothing?
The easy, and most likely, option for Wenger is to do nothing of note in this window. It's far more comfortable for him to sit back at the end of the season and say "we missed out on fourth by a couple of points but we only spent £2.50 and Chelsea spunked £50m to get fourth".
That's been Arsene's rhetoric for several years now. It makes sense. He's scared to spend because the safety blanket of his transfer budget surplus will make him look much less of a manager.
Now is the time for Wenger to be brave and TAKE A RISK. Do nothing and we won't finish fourth, do something and at least he's tried (and done his job). It's not as if we don't have any money to spend.
After all, it's only a risk if you don't know what you're doing.