While many people believe this to be true, the evidence to date does not support this concern of being "out of mind" because you're "out of sight." Since telecommuters are still coming into the office regularly, they don't disappear. Also, the training for both telecommuters and managers should include tips on career management at a distance. If anything, most managers of telecommuters report that their telecommuters are often more promotable rather than less, because the experience of working at a distance helps demonstrate their capacity for more responsibility.