Which two animals were not considered by the other animals to be good workers?chapter 1-2

I think this really depends on which point of view you are looking at this. In a blue collar sense (most of the animals) the dogs and the pigs were considered poor workers. The pigs made the strategy and rules; they, unlike say boxer the horse, did no menial work. The dogs, which enforced the pig rules, did nothing but follow the pigs around and do their biddings.