I work for a enginering company where a few senior engineers got into a large fight that caused a lot of concern. The more senior engineer "stone walled" the not as senior engineer apparently, and the junior engineer now runs an "automation team", whose job is to find inefficencies in the company, and improve or automate them.
The junior engineer gets to pick any part of the company to improve, but he is holding a grudge against my division's most senior engineer, and keeps automating tasks for just my division. It has a lot of engineers nervous that we'll become redundant, and some of our best engineers have either transferred to other units, or quit. Our team leaders have talked to this engineer, and he insists he's not being a bully, but he's just "fixing whatever problems come to mind first". We all agree on my team that he's trying to single out our division (most of the Windows developers in the company) first in order to get our most senior engineer fired (due to not enough people under his management).
How can we approach human resources to stop this bullying behavior, or get him to automate stuff that isn't our work exclusively? My boss keeps telling the team not to worry about layoffs, but we don't believe him, and since the project is saving the company money, we don't know how to properly ask for help.