Directors who got broken by their peak?

I'm wondering if we can come up with a list of directors who completely broke after their career climax

So not directors who slowly lost it or directors who never really had it except for that one anamolous hit. Directors who were good or great until a film that is clearly (or at least arguably) their best work seemingly drained all their juice

I thought of this because of Darren Aronofsky's Black Swan