More staff would help a lot. Even customers noticed the lack of staff, and would frequently point that out to the managers.
I wouldn't recommend working with Staples the company isn't managed well and all they care about is sales. If you get into a position like me that isn't sales focused you will never move anywhere with this company.
They are flexible for part time employees I have never had a problem working evenings or weekends while going to school and keeping it at 10 hours or under.
They are always looking for associates for the tech department and copy/ print center, so apply for those departments.