How Secure is My Job?

Hi all. Quick question about the mechanics of job security. Long story short I started unemployed and took the Coventry job in November with them hovering above relegation. My job security has been 'Insecure' for most of the season and my club vision grade a C-/D. Anyway I just managed to keep them up and now my job security is 'Stable' but after the last game of the season my club vision grade plummeted to F. I know it is because the board wanted to avoid a relegation scrap altogether which we didn't, but I'm not sure why there is such a difference between job security and the club vision grade. Will the grade reset when the calendar ticks over into season 2 on 1st July? Or is that more important than job security and I'm about to get sacked? Thanks in advance for your help!