(Bloomberg) -- Workers have plenty to fret about these days — layoffs, return to office mandates, annual evaluations. But there’s another concern lurking, one that’s rooted in the bygone era of Ronald Reagan and oversized blazers: Stacked performance rankings.

Popularized by General Electric Co.’s former Chief Executive Officer Jack Welch in the 1980s, this evaluation process requires managers to grade staff on a bell curve and give low ratings to a certain share of them. It’s relevant again after a manager at video game developer Blizzard Entertainment departed for refusing to give a low evaluation to an employee that he felt didn’t deserve it in order to fill a quota. Blizzard, a unit of Activision Blizzard Inc., says the process was designed to facilitate honest feedback and improved performance. 

Trouble is, it also creates workplaces as toxic as a 1980s Superfund site. Stacked rankings can pit employees against each other, giving managers like the one at Blizzard the impossible task of telling hard-working, valuable employees that they simply aren’t good enough. There have been dozens of research papers on stacked rankings, also called forced rankings. They’ve found that while the process can boost productivity in the short term, it chills collaboration and creates a dysfunctional, stressful, top-down work environment that could “cripple the company.” The ranks of blue-chip firms that have ditched the system include Ford Motor Co., Capital One Financial Corp. and Microsoft Corp. — the very same tech giant that’s now trying to acquire Activision Blizzard.

“Managers need to focus on building trust, not  leading by fear,” said Victor Assad, a workplace consultant, adding that stacked rankings can also lead to additional legal costs for employers.   

Nevertheless, the system persists, and is utilized by e-commerce giant Amazon.com Inc., the nation’s second-biggest private employer. At Blizzard, known for games like World of Warcraft, managers were expected to give a poor “developing” designation to roughly 5% of employees on their teams, which would lower their bonus and could hamper them from advancing. Stacked-ranking systems can also require the lowest-ranked people on the team to be laid off, which Welch, who died in 2020, famously said was “the right thing for them” as they’d likely get axed later on anyway.

The catch is that it’s very possible for someone to be rated as a good performer, but ranked in the bottom 5% or 10% if their peers are exceptional. Likewise, a poor-performing employee could avoid the ax by working in a group of laggards. That’s according to Dick Grote, a now-retired management advisor who literally wrote the book on forced rankings back in 2005 and has advised organizations including Citigroup Inc., PepsiCo Inc.’s Frito-Lay division and Caterpillar Inc.

“The problem here is that Blizzard Entertainment and their performance management system mixes the two approaches,” Grote said by email. “They’re using absolute comparison terms to make a relative comparison judgement.” That approach is what led to the Blizzard manager leaving. In a Twitter thread detailing his departure, the manager called the quota system “toxic.” The thread generated dozens of supportive responses, including one that called stacked ranking “both immoral and ineffective.”

Grote disagrees, saying Blizzard’s approach was flawed, but could be corrected. Plenty of top executives defend the practice. Ben Zweig, CEO of workforce intelligence firm Revelio Labs, said relative comparisons like forced rankings prevent the “very common pattern” of giving high ratings to most every employee.  

“Data without variance is really not data at all,” he said. “There are plenty of reasons why companies benefit from knowing who is doing well and who is not,” and those reasons go beyond targeted layoffs or other interventions. “Companies can use this data to discover deeper truths about their workforce.”  

But with job cuts rising and HR budgets getting trimmed, few companies have the time, money or inclination to seek those deeper truths. Which leaves us with a more superficial truth: Watch your back, because you might get stacked.     

©2023 Bloomberg L.P.