Okay I'm going to propose my idea originally for a novel, based loosely based on my father's experience as a Union head at the factory he works at.
Frank Hurtz is in his late 20's working at a can factory. A English major, who has been working in the lithography department as a coater operator (he lays down the white coat where the ink goes) for the past five years. He keeps to himself as much as possible, viewing his other working class co-workers as loser idiots. The company that controlled the plant (basically a string of mismanaged factories across the US), has been bought by a much larger, global container company.
This causes many complications since the new company has very strict policies on saftey and working hours (instead of three shifts of 8 hours, five days a week, they have 12 hour shifts 3 days a week with rotating groups to keep the lines running 24 hours a day seven days a week). To make matters worse, the Lithography union was "merged" into the Teamsters Union, who also play a very different. The union contract negotiation is coming up, and everyone is worried because it's a new company, and new union who both handle things very differently. Frank, who usually gives advice the the current union head, is now asked by his co-workers to become the new union head, since he is considered the smartest of them (and unknown to Frank, highly respected).
The story would follow Frank as the head of the union, dealing with the bad management from the past company, handling problems that might occur (Steve comes into work drunk, a guy lost his hand, ect.), and getting to know his co-workers better, and hearing their stories of how they ended up working in a dirty can factory. This would all lead up to the big contract negotiation.
tl;dr: Think of a slice of life version of Kaiji, but instead of gambling, it's about factory politics.