Well, one of the shitiest achievements in general, in all games, not only in every FM
So, considering you will absouletly never do this with your favourite team, I tried almost everything, only thing I didn't check is who made achievements for this game, so I could contact the idiot and ask him about Immortality and Immovable object
So, possibly the quickest way:
- your nationality is Polish, second is Dutch (in game editor)
- choose a club in Serie A, B or C (Italy - 2 manager awards/season)
- choose a club that has odds, in season preview, 200-1 or more
- ALWAYS pick a club with high odds and go for the title or promotion