Briаn аnd Pierre аre cоwоrkers. Many years agо, they were both up for a promotion that neither of them received because their behavior was too competitive. Instead of a promotion, they received coaching to develop their collaboration skills. Each still harbors a grudge about how the other behaved during that process. Now they work together, but their mutual resentment is obvious, and each feels he needs to walk on eggshells to avoid upsetting the other. Brian and Pierre feel a high level of dysfunctional stress caused by ______.