Then the 1990s saw the advent of design-build. That approach may have been around since the times of the pharaohs, but the concept of assigning all responsibilities of design and construction to a single integrated contract suddenly became a new answer to the need for speed in project delivery and an end to litigiousness. As construction firms became more sophisticated and clients increasingly looked outside their own staffs to plan and oversee large construction programs, the concept of program management took off.
Alternate project delivery, and management precepts underlying CM and program management, have become pervasive in the industry. The notion that CM and design-build are "alternative" methodologies is something of a misnomer now.