But the real problem, it seems to me, is with the type of job it is. Is this guy REALLY bringing in that much more money than a new hire off the street? I don't let salespeople talk me into buying much of anything, so an experienced person could sell me the "whatever" I've chosen just as well as some new guy who has been there 10 minutes.
The lesson is not to have a job that can, or *looks like it can, be taken over by some guy off the street. Sad for the guy, he worked hard, I'm sure.