If the balance team has no communication with the "new content" team, then you get good ole'
Win Nhao and a large body of the Season 1 champion release power levels.
The fact that we haven't had anything remotely as bad as the old days makes me wonder what you're on about.
Also, the new content team should not be able to get anything into the game without the go-ahead by the balance team. Fluff, particles, sounds, sure. Game mechanics and numbers though? It is literally the job of the balance team to have oversight on that, and if there is no communication between Balancing and New Content, then there's a lot more wrong with Rito than anyone suspects.