Research has shown that teacher workload is intensifying and teachers are increasingly leaving the profession prior to having taught for 35 years. The purpose of this mixed method, sequential, phenomenological study was to determine (a) how workload intensification impacts teacher performance and well-being, (b) whether or not workload intensification was a primary factor in teachers’ choosing to leave the profession early, and (c) a formula for maximizing teacher performance and well-being. Apple’s workload intensification thesis was the theoretical framework for this study. Quantitative data obtained via a survey (n = 484), together with qualitative data collected via four focus group sessions and individual interviews with 15 teachers who had left the profession early, were utilized to determine if there is a problem with workload intensification in this east coast Canadian province. Quantitative data were analyzed using the chi-square test to determine the relationship between the independent variable (workload intensification) and each of the two dependent variables (performance and well-being). Qualitative data were analyzed to determine emergent themes with respect to workload intensification. Findings from this study indicated that there is a significant relationship between the independent variable and each of the two dependent variables. Qualitative data substantiated the quantitative findings that indicated there is a problem with workload intensification in that it is a primary factor in teachers’ choosing to leave the profession early. Recommendations include having administrators address identified current teacher workload issues. Utilization of the derived formula for maximizing teacher performance and well-being may effect social change by balancing teachers’ workload and thereby encouraging qualified teachers to remain in the profession.