oblems of dealing with backsliding later. There are a lot
of consequences of this decision that people are not always keen to accept.
By agreeing up front that the decision has been made, it is easier to
discuss a retreat from the position later.

&gt;Your notion of some entry criteria seems sensible - though I suspect you
may

&gt;have set the bar so high that nothing will be able to get in (though this
&gt;does depend on how you interpret 'satisfy').

I don't see anything about them that is impossible.  I