Profitability = Functionality + Manageability

• Functionality is directly visible to customers, it's what provides value to our clients and revenue for us.
• Functionality obviously affects revenue and profit and it's easy for everyone to see and talk about (executives, managers, customers, testers, etc.).
• Functionality is only half of the equation.
• Project and code manageability is less visible and is often ignored, especially in terms of the bottom line.
• Manageability makes code easier to understand and thus to modify quickly and reliably, it reduces the cost of producing functionality-rich software.
• Therefore, individual performance and project success must to be measured in terms of maintainability just as much as on business functionality.