I think it presently depends on which subject you teach. For example, at the moment I am trying to get to grips with a new A level syllabus (not my choice) for which there is no textbook, an entirely inadequate scheme of work, a level of support from the examination board bordering on pathetic, and far too much content, a good deal of which is unfamiliar.
This is partly the result of the specification having been approved late and Gove's desire to toughen up the qualification. The situation I am in is analogous to, say, knowing Shakespeare's tragedies but not the comedies or the sonnets, and having to get through books by specified literary critics on the relevant texts who do not happen to be authors with whom I have some prior acquaintance, even though I am pretty well-read.
Considerable background research is therefore required in order to produce 2 or 3 page summaries of the type that one usually finds in a decent 'A' 'level textbook.
This is in addition to teaching a new GCSE syllabus and a heavy timetable together with all the admin and number crunching that is demanded of the average classroom teacher these days.
Even before these changes I was working about 55 hours a week. And I am pretty adept at cutting corners, more so than some of my colleagues.
Plus, I have already read and implemented some time-management strategies detailed in popular publications that are about working 'smartly'.
Overall, my impression is therefore that Carter is completely out of touch with the day to day realities of teaching and possibly even attempting to absolve the government of its responsibility to implement genuine measures to reduce workload.
And I also reckon he would stand no chance of getting through the work I do in under 60 hours, even if he was already in possession of my subject knowledge and experience.