You have to be careful in impulsive benching players. If you read this board regularly some of our posters would have had Cousins, Spangler, Payton Little and Maddie Manning benched last week.
I coached professionally for 8 years, most of it at the high school level and found that the effort issue is best worked out at practice. I have never had a player who played with effort in practice who didn't also play with effort in a game.
Also I feel that a single player in basketball affects the total team more than in any other sport. No matter how good a player they can really hamper to total team performance if they are doping off. As good a player that Vegas was you may remember during her senior year that we were about as good with her out of the lineup as when she was playing. I'm not sure it was an effort thing but something was missing.
Then you have to consider team morale. If you are making knee jerk decisions you could mess up team flow and create concern about your ability and fairness among the players. Having said that you don't fail to address bad behavior hoping it will go away. But such behavior will also show up in practices and should be addressed firmly there.
My last years in coaching were the most successful. My last year at Star-Spencer we finished ranked 4th in the state behind Classen, Northeast and Clinton. My tallest player was 6-1. I made the decision that the only way to compete with bigger teams was to change up things a lot. I believed the kids could learn more than one defense, one press and one offense against the zone and the man to man.
I scheduled shorter time frames for each thing we were trying to run and made it clear to the kids that I believed that they could learn them all and also made it clear that the players who learned would have a better chance to play. Learning was not a problem. They actually learned better than when we ran a limited number of things and ran them over and over in practice. Young people are quick to become bored and they begin to shut down with the drudgery.
I also had a couple of team managers chart every bit of practice, even the layup drills. Players knew we were doing that and that kept them focused.