Your Loyalty grade represents how loyal you've been during your coaching career at the various schools you've coached. Coaches are graded from A+ (best) to F (worst). For each season you remain at the same school, your Loyalty will improve. Every time you move to a new job your Loyalty will take a hit.
If you fail to renew at your school and come back to the same school, your Loyalty will not increase. Also, your Loyalty will not increase while you are unemployed.
NOTE: All new coaches begin with a loyalty rating of B-.