Let's do a little real analysis:

From

http://en.wikipedia.org/wiki/Template:Obama_cabinet

Secretary of State


Hillary Rodham Clinton (since 2009)
Private Sector Experience:

Following a stint as a Congressional legal counsel, she moved to Arkansas in 1974 and married Bill Clinton in 1975. Rodham cofounded the Arkansas Advocates for Children and Families in 1977, and became the first female chair of the Legal Services Corporation in 1978. Named the first female partner at Rose Law Firm in 1979, she was twice listed as one of the 100 most influential lawyers in America.

Secretary of the Treasury
Tim Geithner (since 2009)
Kissenger and Associates Consulting

Secretary of Defense
Robert Gates (since 2009)
numerous

Gates has been a member of the board of trustees of Fidelity Investments, and on the board of directors of NACCO Industries, Inc., Brinker International, Inc., Parker Drilling Company, Science Applications International Corporation, and VoteHere, a technology company which sought to provide cryptography and computer software security for the electronic election industry.

Attorney General
Eric Holder (since 2009)
From 2001 until he became Attorney General, Holder worked as an attorney at Covington & Burling in Washington, D.C.,[8] representing clients such as Merck and the National Football League

Secretary of the Interior
Ken Salazar (since 2009)
Private Law practice 1973 - 1986

Secretary of Agriculture
Tom Vilsack (since 2009)
Private law practice, with father-in-law 1975- 1987 small town Iowa


Secretary of Commerce
Gary Locke (since 2009)
From a poor family, worked his way thru school all the way to Yale Law, paying every dime himself, private practice 1975 - 1982


Secretary of Labor
Hilda Solis (since 2009)
She's fit your bill, no real private sector experience


Secretary of Health and Human Services

Kathleen Sebelius (since 2009)
"Sebelius served as executive director and chief lobbyist for the Kansas Trial Lawyers Association (now Kansas Association for Justice) from 1977–1986"


Secretary of Education
Arne Duncan (since 2009)

From 1987 to 1991, Duncan played professional basketball in Melbourne, Australia with the Eastside Spectres of the National Basketball League,[9]

Secretary of Housing and Urban Development
Shaun Donovan (since 2009)
Not much of a wiki on the guy, can't tell

Secretary of Transportation
Ray LaHood (since 2009)
Mr. Lahood seems to be a fellow whose career has consisted of being a professional Republican politician.

Secretary of Energy
Steven Chu (since 2009)
After obtaining his doctorate degree, Chu remained at Berkeley as a postdoctoral researcher for two years before joining Bell Labs, where he and his several co-workers carried out his Nobel Prize-winning laser cooling work

Secretary of Veterans Affairs
Eric Shinseki (since 2009)
Career military. On retirement:

Shinseki has served as a director for several corporations: Honeywell International and Ducommun, military contractors; Grove Farm Corporation; First Hawaiian Bank;[9] and Guardian Life Insurance Company of America.[10] He is a member of the Advisory Boards at the Center for Public Leadership, John F. Kennedy School of Government, Harvard University, and to the U.S. Comptroller General. He is a member of the Council on Foreign Relations, the Atlantic Council of the United States, and the Association of the United States Army.[11]

Secretary of Homeland Security
Janet Napolitano (since 2009)
Cabinet-level
Private law practice, 1984-1991


I'm not getting the "8% worked in the private sector" here. Looks like more scatter-shot phony rightwing internet bull.