I worked on a HD feature in Thailand last year that had two full operating DOPs . The way we evolved the work flow was that one was "Mastercam" and one was "Magicam" and it sped things up enormously because with their combined experience ( about 50-60 years) they each instinctly knew what the other was doing - it was FUN! and the director got images on his monitor he never envisioned.
Laurie G
DOP