testdriven.com pointed me to an interesting paper from Jim Highsmith on barriers to agile adoption as perceived at the CIO/CTO level:

"At the recent Agile Development Conference in Salt Lake City, Utah, USA, one presentation included a series of objections to agile development heard from senior executives (CIOs, CTOs, etc.) of large organizations. Whether these are valid objections or just misinterpretations of agile development, the fact that they originated with senior executives provides a view into the barriers that prevent the wider adoption of agile methods."