Can you please move the Core Workflow group out of the Committers hierarchy?
Only core developers can post to Committers, whereas Core Workflow is public. It’s confusing.
Moreover, on the home page, new Core Workflow messages counts as "new messages in the Committers category. If I only care about Committers today, I have to enter the category to see if it’s Core Workflow or Committers message.
In short, IMHO these two groups are unrelated 
! I have placed it in the root category so it appears in the root of the hierarchy. If someone thinks that it should be under some other category I will move it there