From tools to organized work
An assistant supports a person, for example in reviewing a document. A specialized agent handles a bounded task. A Digital Workforce here means an organized set of digital roles that take shared assignments through to a verifiable result within defined authority.
The difference lies in how their contributions are organized. During a component shortage, for example, supply options, quality requirements, production planning and customer commitments must remain connected. Several capable agents only become a shared operational capability when their work includes that context. The result only becomes reliable when they follow the company's rules, requirements and applicable law at every step.