User studies have found persona application challenging. We argue that a potential reason for the challenges is the organization's readiness to apply personas. This research reports the on-going effort of developing the Persona Readiness Scale, a survey instrument for organizations' readiness for personas. The scale involves twenty-two items from seven dimensions: Need Readiness, Culture Readiness, Knowledge Readiness, Resource Readiness, Data and Systems Readiness, Capability Readiness, and Goal Readiness. Organizations can apply the current scale to evaluate their persona readiness but using the dimensions for statistical analyses requires further empirical validation.