Support from management
Supervisors and Manager aren't fair with all their people. They focus on their favorite people which has degree.
Freedom to work independently
As I said they aren't fair and if they don't like you they will give you more loads and no special projects.
I've been working there for 9 months but they didn't give me a permanent job, I am one of the employees who worked really hard always do overtimes if they need extra people. Im almost trained to everything and can do everything. They chose an employee to be converted to a permanent position whose been working there 7months after I got hired and didn't even do overtimes.