While there is a laundry list of deliverables each standard EA Job Description calls for, rest assured I have 10+ years of experience understanding that the EA Role shifts it's focus to "all other duties as assigned" more than anything else.
I find it far more useful to understand what you're looking for and how an EA / Virtual Assistant can optimize your organization. Need support outside of the daily administration tasks, not a problem. My Special Projects portfolio continues to expand, from events and conferences to marketing and talent management. I'm never shy to throw my hat into the ring to support the team where needed.