What a dumb decision. Girardi is a very good manager, one of the more capable ones in baseball.
In this Hal Steinbrenner is echoing his father... he would have fired Girardi too.
The Yankees are all about winning World Series championships. One championship (2009) is not enough. Girardi was a good manager, but the Yankees want more.
The Yankees are set up for a half decade - at least - of success with a great young core and payroll relief from older, bad players coming off their books. It's nothing more than virtue signaling to relieve a manager of duty who's known for wringing success out of young, developing players.
Put it this way, I would be ecstatic if my team swapped managers and hired Girardi.