What do I say about why I left my last job? - 4 weeks in

They always ask why I left, and I freeze. I would rather hear the honest version than the polite one. I also do not want to seem like a risk. What do you say?

Practise it out loud with a friend. Mine felt natural after the third try.

I keep it to two sentences: the company cut my team, and here is what I am proud of and what I am looking for next.