holiday tactics testing is not working - test

I have run test to proof that simulating a tactics by going on holiday doesn't justify that your tactic is good or bad.

Settings
Training - all rest
Set Pieces - default
Tactics - the same for all 3 seasons
Transfer - rejected
Squad - picked best 11 without restriction and set to use the same squad as possible.

Outcome:
West Ham
S1 Sacked W3, D0, L8
S2 2nd W23, D2, L9
S3 Sacked W10, D8, L9

FC KOLN
S1 2nd W23, D2, L9
S2 18th (Sacked end of the season) W8, D6, L20
S3 3rd W19 D9, L6

Real Sociedad
S1 4th W23, D5, L9
S2 3rd W24, D7, L6
S3 4th W22, D4, L4

Conclusion:
Better team could become more consistant (REAL SOCIEDAD) but in average team it is random.

So while holidaying, the same tactic using the same players can get you sacked or finish 2nd. That's wild!

With West Ham I holiday to the end of the season but I was sacked after 11 matches. Then I load it back to starting point and holiday again and finished second.

I think I didn't make it clear enough. I played the same season 2023 / 2024 on the same settings for 3 season. When the season was finished I load it back to starting point.