#3. Make sure the selected waitstaff is reliable
Check the applicant's background too, are they reliable employees? Do they show up on time to work, or are they notoriously late? Triple-check their references, both professional and personal, to determine if they are the dream employee for you or a hiring nightmare.
Many times a waitstaff applicant may look perfect on paper, but in real life, they are quite the opposite. It's good to have direct communications with their former employers and other people that know them well, to get an accurate depiction of them on both a professional and personal level.