Conversation so far:
What did Willie Brown do for mass transit?
In 1998, Brown was Mayor during the summer of the Muni meltdown as Muni implemented the new ATC system and Brown promised riders there would be better times ahead.
Did he improve transit?
Brown increased Muni's budget by tens of millions of dollars over his tenure.
Brown later said he made a mistake in over promising with his 100-Day Plan.

Question: What were some of the mistakes he made?
Self-contained rewrite: What were some of the mistakes Willie Brown made?