In a factory situation, specialization can help increase the output in the mass production of materials and goods. However if one component goes bad...if one special part cannot perform, it affects the whole and can weigh heavily on the production. In that case the chain of workers and the factory is only as strong as their weakest link. Thanks @krnel
Yup, when each person is a part, they all depend on each other. If one fails, they all grind to a halt.