[gryphonshafer]

I've worked for companies as a remote worker, and I've owned a company that for its entire lifetime hired remote staff. In my experience, as long as you hire good people, the time zone delta is the only limitation that's extremely difficult if not impossible to overcome. Everything else can be solved with good communication (which should exist anyway), good requirements (which should exist anyway), and good process (which should exist anyway).

If the time zone range of a team is less than about 4, then in my experience the team works quite well. If the range is greater than 5, it almost always encounters problems that even good process, requirements, and communication struggle to solve.

There are always exceptions, of course.