They also have the knowledge and expertise necessary for illness, injury or accidents. (familypetclinic.org)
But, there's a follow up question to that: Do you have the skills and expertise necessary in order to actually do it? (theeverygirl.com)
How do school district leaders act with urgency for immediate results when we know the development of expertise necessary to improve teaching is a long term process requiring a long term commitment? (blog.k-12leadership.org)