My last job also needed to reduce the workers because the headquarters had noticed that our company had a bigger manpower than that of the Thailand branch. The first people that they had to retrench in our company are the machine operators.

I’ve resigned from that job, and they had not replaced me with a new hire.

And yes, if a manager decides to leave, it can affect a lot on the motivation of co-workers. They had established a good influence on their subordinates in the beginning.