3M brought in its first outsider CEO to run Six Sigma through every plant

3M's net sales slipped from $16.699 billion in 2000 to $16.054 billion in 2001 as worldwide demand slowed, and its reported operating income margin fell from 18.3% to 14.2% that year, per its SEC filings — a drop that included $504 million in restructuring charges. That April, W. James McNerney Jr., 3M's first CEO hired from outside the company, announced cutting about 5,000 jobs, roughly 7% of the workforce, with a one-time charge of about $600 million against projected annual savings of about $300 million, per contemporaneous press coverage.

McNerney paired the job cuts with a company-wide rollout of Six Sigma, the statistical quality-and-efficiency methodology he had used at General Electric, alongside four other named initiatives — global sourcing, an internal 'Acceleration' growth program, eProductivity and standardized global business processes. 3M's own 10-K filings credit these combined initiatives with adding more than $500 million to operating income in 2002, and a further $400 million or more in both 2003 and 2004.

The discipline compounded into record results within a few years. 3M's operating income margin reached 22.9% of sales in 2004, up from 20.4% in 2003 and 18.7% in 2002, with 2004 net sales of $20.011 billion and record net income of $2.990 billion, according to its FY2004 10-K.

Its first outside CEO cut 5,000 jobs and imposed Six Sigma company-wide, pairing headcount reduction with a measurable standard that rebuilt margins to a record 22.9%.

Cutting headcount and imposing Six Sigma at the same time meant the smaller organization that emerged was measurably more efficient, not just a cheaper version of the old one.

Naming specific initiatives with tracked, filed financial contributions each year kept the program accountable to results 3M reported publicly, not treated as an internal-only culture change.

Bringing in an outsider CEO gave 3M a leader without loyalty to existing plant practices, able to impose one standard across a company that had run divisions independently for decades.

When margins slip from slowing demand, pairing cost cuts with a measurable, company-wide efficiency standard rather than just headcount reduction can rebuild profitability past where it started.

3M's operating income margin reached 22.9% of sales in 2004 with record net income of $2.990 billion, up from a 14.2% margin in 2001 when the restructuring began, according to its SEC filings. McNerney left 3M in mid-2005 to become CEO of Boeing, and 3M's Six Sigma program remained a core part of its operations well after his departure, widely cited alongside GE's own Six Sigma programs as a template other industrial manufacturers followed for company-wide quality and cost discipline.