At the end of the day, if a Sales person can bring in 100-120% of their salary, then they're worth every penny.<p>Sadly when I joined my current company there were two sales staff who seemed to run the place. Within about a month they were both gone. Probably because they weren't making any leads.<p>Furthermore, one of them couldn't do sales over the phone unless they were at home. At the time I was the only one to spot this as being a major flaw for a sales person but was shot down immediately.