He will invest in a club in the Championship with the potential to be an established saleable asset in the Premier League within 5 years. He will be looking for a financial return of about 50% on his investment so if he pumps £30m into a club, he'd be looking to pass it on in a few years for about £45m.
But why would someone come in and buy the club for £45 million?
Even if the next five years is a success and the team gets promoted and stays in the Premiership there's no guarantee that anyone would buy the club.
There's hardly been a queue of people wanting to buy the club in the past, when it was valued at much less than that.
So what happens if in 5 years time Mandaric wants to get out, and he can't find a buyer?
Will he sell all the players and the stadium to get as much of his money back as he can?
Will he stop paying the bills and allow the club to go into administration?
If someone is a good businessman buying into a football club with the intention of making a profit is not the most sensible financial decision they can make, unless it's a club the size of Man Utd.