Yes, You Can Blame Your Pointy-Haired Boss On the Peter Principle
Nerval's Lobster writes: You've heard of the Peter Principle, which suggests that all employees manage to rise to the level of their incompetence. (That is to say, everybody is promoted until their skills and strengths no longer align with their current position.) While the Peter Principle is often treated as a truism, a recent Gallup study (registration required)—the result of four decades' worth of research, involving 2.5 million manager-led teams—suggests that it holds a significant degree of real-world truth. "Gallup has found that only 10 percent of working people possess the talent to be a great manager," the study mentions in its introduction. "Companies use outdated notions of succession to put people in these roles." In Gallup's estimation, there are so many bad managers out there that one out of every two employees have "left their job to get away," according to the study. "Managers who are not engaged or who are actively disengaged cost the U.S. economy $319 billion to $398 billion annually." In other words, there are a lot of pointy-haired managers out there.
The best way to understand the principle is to imagine the counterfactual.
When does a person *not* get promoted any longer? When they are not actually that great at the position into which they have most recently been promoted. At that point, they do not demonstrate enough merit to earn the next obvious promotion.
So, the cadence goes:
Demonstrates mastery of title A, promoted to title B.
Demonstrates mastery of title B, promoted to title C.
Demonstrates mastery of title C, promoted to title D.
Does not manage to demonstrate mastery of D = is not promoted and stays at that level indefinitely as "merely adequate" or "maybe next year" or "still has a lot to learn."
That's the principle in a nutshell—when you're actually good at your job, you get promoted out of it. When you're average at your job, you stay there for a long time.
STOP . AMERICA . NOW
The Peter Principal is commonly misunderstood.
TFA is accurate but your restatement of it isn't quite right.
You have the skills to do a good job, and you get promoted. That keeps happening until, eventually, you are promoted to a level where your skills aren't quite good enough to meet the requirements. That's where your career plateaus.
Eagles may soar, but weasels don't get sucked into jet engines.
Gosh the box of dangerous generalisations must have been on special this week in your part of the world. While many non-technical managers "will have no idea what their people are doing" that doesn't have to be so.
In my 25 year career I've had the pleasure of having two non-technical managers who were far and away the best managers I've ever seen in action. They used their non-techiness to their advantage and built high performing teams that would walk over coals for them. It's called trust.... "I know you are all supremely clever, and know stuff that I don't.... that's why you're the engineers. My job is to trust you all to do your jobs well, make sure nothing gets in the way of you doing your job well, and by the way you lot being a bunch of arrogant techie dicks, and ignoring me as a "non-techie girl" counts as "getting in the way of you doing your jobs well" "
And to the point of the original article - Two of the absolutely worst managers I've had were promoted engineers who weren't good enough to make it into the ranks of "chief engineer / consulting architect / great poo bah of technicality" and felt their only scope for promotion was to take on management. To the credit of one of them, he realised he was totally crap at this management lark, and re-trained. Over time he actually became quite a good manager - not great but pretty good.
The other doofus left in a hail of "thank god he's gone" and continued to wreck havoc wherever he went.