Performance management for mobile workers is harder for the manager. There's a lot more metrics and measuring than most "soft skill" managers are comfortable with. And until recently, many managers are selected because of their "face skills" and not their project management chops.

There will always be jobs were people will go to a place and work with other people (McDonald's, Prisons, Hospitals.) But there will be a increasingly large sector of the economy where it will be economically beneficial to "do away" with the office. Those who have those skills are destined to benefit.