@Riot You should NEVER put champion changes in the hands of someone who doesn't PLAY that champion.

Ever. This is how you get dissatisfied customers who complain years later about reworks, you should always put someone knowledgeable and appreciable toward that champion in charge of any changes, no matter how small they might seem, because someone inexperienced with them cannot foresee to the same extent the impact of those changes or understand the playerbase's reaction to them.

Edit, to be clear, I mean kit changes, not number changes, such as nerfs and buffs that don't impact a champion's play style.