Since companies face continuously changing business processes, centralized process repositories and execution engines have been integrated into the heart of enterprise systems. These systems are then able to support repetitive processes. In order to extend the reach of process orientation into more collaborative settings, employees must be given the possibility to adapt and refine the processes to their individual needs. Personalized process templates are applied to tasks and running process instances are subject to massive changes by the participants. These flexible processes require for process management infrastructures of a more peer to peer style. We argue that the concept of Dynamic Routing is a valuable paradigm for supporting highly flexible processes. We identified three patterns for Dynamic Routing and sketch future enterprise system architectures implementing these. We present two case studies where dynamically routed interactions are at the center of attention.