Always great to see more and more posts on the similarities of Tetris and Product Leadership and Management!

I also agree that acknowledging your gaps and constraints is almost mandatory for any agile business, let alone Product Manager to achieve longer term success. Often, we wait for the perfect piece to come along, but then an externality (e.g., COVID) hits you in the face with weird shaped objects that don't fit your short term needs or priorities!

I also wrote up some more backlog related ones for PMs to read here! Have a look if you have time.