Why is there a large turnover of personnel in the Soviet communications department?

Squeeze grass-roots employees. The first thing for a company to go public is to repay its shareholders, which can only be achieved by squeezing grassroots employees. Moreover, in this big company, leaders are basically airborne and never promoted from internal employees. Ordinary employees have no future at all. Employees have been leaving the Soviet Union and recruiting, so the turnover rate is high.