Eventually Yahoo solved the dillema by wrapping these projects in successive layers of management, like a bureaucratic oyster reacting to some irritant it doesn't understand but can't get rid of. Vast amounts of time would be spent on things like requiring integrated login, rather then stepping back and figuring out how to really fit Upcoming or Flickr or Delicious into a vision of what Yahoo was for.
I'm really happy Andy got the domain back. I'm still holding out for Joshua to reclaim Delicious!