I have a question for the group as certain managers are black listing consultants that accept counter offers after having committed to taking a new position.
I ask this as certain managers want to have a black list of people that cannot work for us due to one of the above. What do you think?
I would not work with that candidate again. In my experience, serious candidates (active and passive) make a mental shift when they begin to look for a new opportunity. They make the decision to leave and either your opportunity will snag them or someone else will have the right opportunity. To remain with the present employer is not really an option in the serious candidate's mind.
For me to again work with that candidate would require them to completely assure me that they are now "serious". So far (8 years as a recruiter and 25 as an HR professional), I have not had anyone be that convincing.