“…Studies demonstrate the power of "enriched work" (i.e., work that shares the core job characteristics of the JCM). For example, teachers who assume nonteaching duties, and therefore have higher skill variety, tend to have better attitudes about their jobs (Rosenblatt, 2001). 74 D. Mayrowetz, J. Murphy, K. S. Louis, and M. A. Smylie With work redesign efforts in schools though (e.g., career ladders, the creation of formal mentor positions, teaming, and participative decision making) most studies are unable to detect considerable spillover from positive emotions to improved performance.…”