It was a different kind of work . The first part of the day was n't too hard , and with the exception of the biting insect encounters , we fared pretty well . We were working in teams of two or three , doing our different duties , calling out measurements of coffee bush height , how many berries per branch , and calculating density . By the time 10:30 a.m. arrived , we were knee deep in tasks , and had become quite efficient in our own individual systems .

Based on the preceding passage, answer the following question Why were the workers paired off into teams of two or three ?
This was a very detail oriented task , and the more crosschecking , the better