He was talking about the club, not the team.
By the time you've bought it, solved the stadium issue & then invested in the squad, you'd be looking at the kind of figure he mentions
Juventus' new stadium which is state of the art and holds 40,000+, cost £90m to build.
The club would cost £120m to buy if the rumours are to be believed.
That's £210m.
I don't think the team needs £300m of investment right now...