The swiftest way to improve the bottom line is to start finding out at which point ticket price increases start to eat into attendances. I'm sure there would be an improvement in marketing and sponsorships. They'd be needing to cover the interest on their loans they've used to buy the shares, so they'll have a huge incentive to do better there. But not sure we'd see any benefit to it.
This lot aren't good news. There's obviously room for a lot of improvement in a lot of ways for the club. Doing it to pay off the current majority shareholders to go, and then to provide a decent earner for some new owners really isn't what we need. We need the investment to begin a decent cycle of success > more money > more success, not to bob along as we are but with the money leaving the club. We should already know how crippling long term debt can be. We're already mortgaging our tv rights for the season to get the money in. We've a high interest loan there to a former owner too. Doubling down on that model would be stupid for everyone but the men who get a football club for free.