Greatest Classroom Management Challenge

I think that as a teacher my biggest classroom management challenge will be the communication with other teachers. Since I run an ISS room and it is located in a metal portable building away from the main school without a PA system or a computer it has been difficult to get with other teachers to get homework assignments for students that are in there just for a short period of time. I am sure I will have greater challenges in the future than no computer and no PA but I am up to any challenge that comes my way.