#1109 1946 · Russell Kelly Office Service (later Kelly Services) · Staffing and temporary employment services
A Detroit temp agency turned every short assignment into an unofficial job audition
the problem
Employers hiring permanent clerical staff off a resume and interview had no way to see the work before committing
background
In 1946 William Russell Kelly opened Russell Kelly Office Service in Detroit with ten thousand dollars, offering businesses inventory, calculating, and typing help; when clients began asking whether Kelly's own workers could simply come and do the job at their own offices, he started sending people out on short paid assignments instead.
A traditional hire committed an employer to someone based only on an interview and a resume, with the actual quality of their work invisible until after the hiring decision was already made and hard to reverse.
what everyone would do
Hire permanent clerical staff the standard way: post the opening, interview candidates, and make an offer based on the interview and their references, without ever seeing them do the job.
what they saw
Kelly noticed clients weren't really asking for temp labor, they were asking to watch someone work before deciding anything permanent — the 'temp' assignment was never the product; the audition it quietly gave them was.
the move
A temp assignment let an employer watch someone do the actual job, day after day, on real work, before ever offering — or being asked for — a permanent position, effectively turning every placement into a free, ongoing audition neither side had to formally call one.
why it works
Because the worker is already performing the real job inside the real office, the employer accumulates weeks of direct, low-stakes observation an interview could never produce, and either side can walk away without the sunk cost or awkwardness of a failed permanent hire, which is what made the arrangement easy for clients to keep saying yes to.
the payoff
Renamed Kelly Girls in 1956, it ran 169 offices in 44 states by 1964, credited with starting the trial-work-over-blind-hire staffing model.
where it breaks
The audition value disappears if the temp role doesn't resemble the permanent one closely enough to reveal the same skills, and workers strung along through repeated temporary placements without a real path to permanence can come to see the arrangement as exploitation rather than opportunity.
what came after
Temp-to-permanent staffing is now a standard hiring channel across industries worldwide, and the model Kelly built by accident, answering clients who wanted to see the work first, remains the staffing industry's core proposition seven decades later.
references
- [1]William Russell KellyWikipedia, 2024en.wikipedia.org
- [2]Kelly, William RussellDetroit Historical Society, 2021detroithistorical.org