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SaaS doesn’t solve coordination
ERP systems track inventory. Messaging apps forward documents. Both are useful. Neither is the same as having someone whose job it is to make sure a buyer revision actually propagates — from inbox to production floor to supplier, with nothing falling through.
Coordination is the act of routing intent through an organisation. Software gave us better channels. It did not give us the router. That role still belongs to a person — usually several people — spending most of their working hours in a relay race of copy-paste and status calls.
Software gave us tools, not teammates. The distinction matters more than most vendors want to admit.