There's one point I'd like to make. I don't think the length of time one is on the committee is directly proportional and equivalent to one's ability to understand an issue. That probably should be clarified.
Having said that, it seems to me from what I hear that what is actually happening on the ground in practice is not altogether far from what the motion, at least, by Ms. Chow specifies, except that it leaves a measure of discretion to the department to exercise it when need be. Would that be a fair statement?