Just because it's been repeated doesn't mean it's true. My strong bet is that it's apocryphal, for the reasons stated above. No coach would do that. It sounds like something made up to burnish the myth of the steely PS.
She benched Candace parker at her home coming game, let tamika catchings have it about her lack of defense and didn't let up, kicked her best players out of practice, didn't allow the plane to land so she would have her baby in TN (while flying over VA). The stories we have been told are probably just the tip of the iceberg so i think her steely resolve is in tact with out a made up story 😂
Regardless, CPS is an all time great and whether she did do it or not ... whatever she did got Michelle to TN ! Have a good one 👍🏽