Наиболее простой: ввести систему подсчёта отклонений, и использовать её (в течение двух-трёх лет) только для оценки эффективности работы подразделений, но не сотрудников
The most simple: to introduce a system of counting irregularities, and use it (within two to three years) for assessing the effectiveness of the units, but not employees
The most simple: enter deviations counting system, and to use it (for two or three years), only to evaluate the efficiency of the units, but not employees
the most simple: to introduce the system of counting deviations, and to use it (within two to three years) for the assessment of the performance of the units, but not staff