According to Engineering News Record:

Owner outsourcing of management and operations work has increased dramatically since 2006, according to a new survey of owners. The survey of 191 owners was released on Nov. 3 and conducted by Raleigh, N.C.-based management consultant FMI Corp. and McLean, Va.-based Construction Management Association of America. It found that outsourcing at the program-activation phase increased by 60% between 2006 and 2009 and by 30% in the operations and maintenance phase. It also found that over the next five years outsourcing will continue to increase in nearly all phases of the construction process.

You can download the PDF of that study, which has many more implications, here (PDF), from the CMAA website.