Which of the following does not contribute to efficient process flow?

Allowing variability and irregularity in processes does not contribute to efficient process flow. An efficient process is typically characterized by its stability and predictability, where tasks flow with minimal disruptions. By introducing variability and irregularity, processes can become disjointed, which leads to inefficiencies, such as delays, errors, and increased complexity in managing tasks.

On the other hand, regular assessment of task efficiency provides insights into how well processes are functioning and where improvements can be made. Visual process mapping helps in understanding and optimizing workflows by illustrating how tasks are interconnected, which can streamline processes. Delegating roles effectively ensures that tasks are assigned to the right people, enhancing accountability and reducing bottlenecks, thus further supporting fluidity in the process flow.