A well-functioning fatigue safety action group (FSAG) use multiple sources assessing their operation, transforming their analysis into insights and then actions. However, it is easy to get caught up in statistics over fatigue reports and predictions from a fatigue model. All you have time for, possibly, is adjusting a few flights falling below a threshold you have set up for yourself. That approach, being consumed by what can be counted, will have a very marginal impact on the overall fatigue risk your airline is exposed to.
Instead, consider focusing on what counts; reducing your overall risk, looking at the full picture. Such efforts includes proactively working with your rosters to provide for crew influence, fair-share of risk, and actively suppressing fatigue risk throughout the crew management process - when constructing the working patterns, during optimization. You are welcome to read more about what is considered best practice in this document. Enjoy.