We don't even need that. Yes, we need money and investment but we don't necessarily need owners like Man City's or Chelsea's. What we really need is someone who can run the club properly and have a long term plan in mind. Just look at Southampton.
Southampton are run by one of the richest families in Europe...But you are also right, some actual long term strategic planning with people included who actually know how to run a club, would be a great start
A sad reality to football. Due to the nature of football, failure is seen as the managers fault. Never the players. It’s like they’re made of Teflon.