In 8 ball and 9 ball there isn't anything you can do if your opponent is off to the races. You can just sit the chair and hope for a mistake. That is where the similarity ends. The guy with the bad group can still win the game if he employs creativity. Playing safe shots while opening a cluster, turning the screws further with a ball in hand until the run is available, or using your obsticles to limit your opponents option and force them to break your problem ball free.
I really like the dynamic of the game. Games which turn into safety battles leaving the more thoughtful or patient man with an edge, or games that break wide open with skillful ball control through traffic to complete a difficult run. It's a totally different game each time you rack the balls. It has best balance of offense and defense IMO
Banger