If you want Pool to be great again, bring back Sponsor with MONEY to entice people to get into playing Pool.
IMHO if I had a kid who was interested in being a pro athlete with the ability to make a good living for a long time I would tell the kid to take up Golf, not Pool.
Most PGA Pro's on the Tour Make a Decent Living.
Most PGA Pro's have endorsements, sponsor, and last this is a secondary flow of income.
Most PGA Players get free equiptment, bags, balls, clubs, clothing, and are paid for using the items. Subliminal advertising, and Tiger Woods get big buck to wear Nike stuff.
The other thing is when you can no longer compete with the young guns, their is a Senior PGA Tour.
Ever hear of a PGA Pro winning a big tournament, getting a rubber check, or the promotors skipping town with you winnings, and stiff everyone else.
Golf is the way to go, and a model POOL should clone if they want to be great again.
I have been playing pool for fun, over 60 + years, it's something fun to do, bar tournaments are ok, but nothing too loose sleep over. Play 5 or 6 hours, and take home 70 - 100 dollar for a first place, then you got to subtract cost of travel, a few drinks, and you winning have diminished.
Only a few Pro Pool Player ever retire to a nice home, or have much to show for their effort playing Pool. Many die broke, with someone passing a hat for a decent burial.