Reviews take time, are fallible, and are useful only when the rot can't be dislodged by quick, decisive action.
There is a glaring anomaly already, when Simpson was renewed for 2-3 years AFTER winning a flag and looks like winning another, and offering a 5-year extension over and above industry norms to produce a talented list that has unlearned how to play football, and seems burned out mid-season. Every season.
You shouldn't need a review to put a broom through the admin - including spin doctors, and also the coaching staff.