Send the managers to a "how to handle workplace conflict 101" OR send them to any. possible. course. that teaches them how to properly management employees and be professional within the workplace.
First I will make the meeting in groups, division and regions all over the country and treat all same give them task improve better and make them self a Self CEO of self. For manager for that division reviews will make and if you Hire person don't fire him look his working habits not personals his working habits monitor his work and then bring proof think 10 times before you do something wrong
then remove that person change the deportment then see again because we are industrial company we are here to make money and be the best in country treating well policies must be given when your hiring must not be your close friend, not at all Relative that will kill the company that is what happened to the company a long time ago when
I was working for this company in 2011 now 2019 still I have kept in me now I am free. If I get a chance I will work better and watch myself and others.