This study explored how the process of Response to Intervention (RTI) has changed the roles of three veteran special educators. The background knowledge of these teachers that helped make the initiative successful, as well as the "building blocks" that were present in the initial implementation of RTI models in their settings, were described. The essential components that contributed to successful RTI processes in K-12 settings were described by the participants. In addition, the successes, challenges, and recommendations of these veteran special educators for the future of RTI implementation were explored. The experiences of three veteran special education teachers who participated in successful RTI models, as well as current literature on best practice in Response to Intervention, were described. Recommendations for teacher preparation programs, schools, and future research were presented. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com.bibliotheek.ehb.be/en-US/products/dissertations/individuals.shtml.]