Newby here, hello! I work in a large organization that is transitioning to 2015. We are currently stuck in a mode of assuming that any nonconformance to a documented process must go through thorough root cause analysis and corrective action (which dilutes the attention we can pay to high risk problems). While 10.2.1(b) indicates that we explicitly have the ability to evaluate the need for action based on the root cause, I have seen in this forum (and among my more experienced quality peers) that it is possible to stop and think about whether a nonconformity is a "big deal" or not before descending down the path of a full root cause analysis. I am having trouble aligning this common sense approach with 10.2.1(b)(2) which states that we must "determine the cause" of the nonconformity in order to determine whether corrective action is required. It seems like this requires a full RCA for all nonconformities, but we can decide whether or not to implement corrective actions. This doesn't align with the many threads that say a full RCA may not be needed if the problem is not systemic.