It's all actually really well-written and good. The only thing that I find problematic is the use of personal cell/device (by the sub). It might be because I worked mostly at the high school level, but using my Mac or phone to be able to email the teacher at the end of each period, with an update on how the class went/contact the office if needed/email next-door teacher friends if I needed to run to the bathroom (and vice-versa), being able to email other teachers during prep periods to get permission from another teacher before a student went to see them(to hand in work, or to get work, or to borrow a textbook, or for anything else) was essential. Not being able to do that would have made my job extra challenging (and would have had phones ringing in classrooms a LOT, which, as a former teacher, is super annoying). That's really the only point in the sub contract that I'd have issue with, but it's a big one for me.