I am a sub. in an urban district and have some thoughts on WBT. I've watched videos til I was cross-eyed and I've read everything I can lay my hands on. My initial reason for exploring new methods was classroom management as a sub. I have come to believe that there may be ways to also incorporate real teaching as well. Remember, a sub does not have any expectation of anything other than the immediate day we are on-site. There may well never be another assignment to build from, like rapport, trust, perfecting "mighty groans" and such. If I were to show up 30 to 60 minutes before the students and have to read 8 pages of WBT and understand it, I would chuck it and do what every I could to get through the day.
I actually started with WBT today for the first time. I have to try to get through the regular teachers instructions, so I can't spend the whole day learning and teaching WBT with the students. There is no tomorrow, only today. We learned the 5 rules and drilled them for about 20 minutes. Instead of "teach" and the other methods, I pretty much had to keep with the stringent district and regular teacher schedule and plans, but I tried to do everything in small bits. We incorporated the point system and they loved it and all the behaviors were many times better than the last time I was in the same room. I'm still looking forward to incorporating more methodology into the class. It was on balance a spectacular day.
Going the other way however, as a regular teacher, expecting a sub to get through your lesson plans and schedules AND do it with something the sub has never been exposed to until they show up for the assignment may be a bit much. Talking to the class and maybe give the sub the 5 rules and how to start the day with them, may be a good bridge to get through the day and the sub will likely be enthused and want to know more. Once you have one or two subs converted, you've got a couple of reliable and enthusiastic subs for the future. Give me a mighty "oh yeah".