Thats one of Google's biggest problems IMO. There is no "grand vision" just a bunch of teams working on random stuff that sometimes completely competes with each other and they end up killing 1, if not both after a year.
PS: perhaps Apple was able to achieve "centralized creativity" only because of Jobs.
Metaphoric org charts of tech companies: http://ritholtz.com/wp-content/uploads/2013/07/2011.06.27_or...
Compare to for example Apple which seems to think so much they get very little out.
Maybe it is very difficult for large organisation to find the balance between these two. Grand vision requires somebody to manage it and filter what gets out. That can lead to great products getting killed just because they were not invented by the VP Visions.