[Excerpt] The authors postulate that workforce scalability is the key competency necessary for ongoing marketplace success. Workforce scalability encompasses two factors: alignment and fluidity. The former is an ideal target that calls for the right number of the right type of people in the right place at the right time doing the right thing. The latter is the means by which organizations hit the target, and specifically refers to the speed and ease with which employees are moved around and adjust their behaviors to suit changing business requirements. A set of operating principles facilitates the simultaneous attainment of workforce alignment and fluidity.