Things get agreed on in meetings and then just don't happen, how do you fix this

18 person team. We'll agree on something, no clear owner, and it just floats. Nobody drops the ball on purpose it just has no home so nothing moves. I end up chasing everything myself which is not a l

18 person team. We'll agree on something, no clear owner, and it just floats. Nobody drops the ball on purpose it just has no home so nothing moves. I end up chasing everything myself which is not a long term solution. Read a bit about accountability charts. Not sure if that's overkill for our size or if that's exactly the thing I'm missing. What actually worked for people