USDA a "Lighthouse Agency"

That's from this FCW piece on some GSA IT contract awards:

"The awards support the first phase of work at five IT Modernization Centers of Excellence. Work will begin at the Department of Agriculture, which was selected as the government's "lighthouse" agency.
SIE Consulting Group will be working on cloud adoption, McKinsey & Company is tackling infrastructure optimization, ICF Inc. won two contracts for customer experience and service delivery analytics, while Kaiser Associates was awarded a contact center contract."

Don't know what "lighthouse" means--presumably a new bit of jargon that sounds good but turns out meaningless, like "tiger teams" back in the 90's.