I think the extra cost comes in when you have to hold (appx.) 16,000 3rd graders back statewide. While not only creating a logistical problem because of a huge drop in 4th grade enrollment and a subsequent increase in 3rd grade enrollment, it is going to mean that 16,000 kids are in school one year longer, which would eventually equate to needing more teachers.
Obviously, I think the figure that was thrown out (20% statewide are failing), would slowly drop, and it would not be as drastic as it would be......next year for example.
That being said, I do know a lot of elementary education graduates looking for a job, so maybe it would at least help them.