In men's pool, I would change the way the players dress.
I'm sure that a lot of sponsorship dollars are gained from the deals made with companies like Onboard, who put out a nice product and are a positive force in the game. Right now, they dress like pro bowlers, who are similarly fighting for attention. The Hustlin' clothing brand is a good one, but does it serve the game's best interests when a player competes wearing that brand in major competition? I don't think so.
Old timers like me remember how guys like Jim Rempe and Kim Davenport dressed and how they always displayed the latest fashions. I'd like to see today's top men given a similar opportunity to express themselves through their choice of clothing.
The appearance of the players in top level competition affects the game's image. The argument that you can only shoot straight in the most informal clothing has long been disproven by the top snooker players, the straightest shooters of them all.
The women pros take their appearance more seriously, often wearing nice clothing and presenting themselves with a tasteful elegance.