For either a one or two-man crew, I feel the most efficient setup is:
*One 48" - 52" walk-behind mower w/detachable sulky
*One 32" - 36" walk-behind mower w/detachable sulky
*One dedicated string trimmer
*One 2-stroke powerhead with string trimmer, edger, hedge trimmer, and pole pruner attachments
*One blower per crew member
Conversely, the equipment above would do best on turf areas under 1 acre. Larger properties would be better served with a larger deck mowing it.