So much more than that even, so many are teachers must feel compelled to do what they must for the sake of their students. I know it's incidental, but the extra effort I see my own kids' teachers putting in without financial incentive is incredible. Education is a business where a lot of "employees" probably aren't doing the calculations around their pay-per-hour but rather are focused on the accomplishing the things necessary for their students success.

Maybe that's a long winded way of saying that I suspect a lot of teachers are bleeding hearts and do not closely manager their time or monetary budgets closely.

If you are not sure in advance what you are going to want teachers to do, then this might just be an excuse to exploit them.

Feasible for whom?