Isn't that moneyball.
No, that's a very simplistic, primitive employment of statistics, but given these are allegedly the people who brought us 'chances created' nothing would surprise me.
Moneyball is about exploiting asymmetric information - the market's view versus the 'correct' view, in baseball that so happened to take the form of statistics, but there's no explicit symbiosis between the two.
If they want a manager who buys players cheap and sells most of them on at a profit Rafa is their man.
That assumes you're aiming for the top quarter of the table.
If you purely wanted to make money out of a club, it'd be a lot easier to set yourself up as a bottom half side where players flatter to deceive, then sell them on to unsuspecting victims for daft money, much like Villa.