The day-to day job responsibilities of an Senior Assistant Manager includes tasks like transportation, assisting with money management, diet coaching, shopping, cleaning, assistance with ADL’s, and teaching life skills, But the most critical thing that an Assistant Manager does at Arundel Lodge is to assist people in their journey of recovery from mental illness, physical illness, and substance abuse. IV.Coordinate Persons Served somatic and psychiatric needs with Rehab Specialists, Day Program Counselors, Clinical Nurse Specialist, Primary Care Providers, pharmacy and when appropriate, the person served.