NASDAQ OMX and Lean IT

According to this press release, the world's largest exchange company, NASDAQ, has undertaken a global lean information technology (IT) initiative with the assistance of BMC Software. Although the specifics are not given, the overarching goal, according to Carl-Magnus Hallberg (NASDAQ OMX's senior vice president of global IT services) is "to more quickly deliver the right business services to our colleagues and our customers."

Although the application of traditional lean manufacturing concepts to IT on larger scales is only just beginning, many common IT problems -- poor executions, slow application response times, misused hardware, and narrow processes that marginalize innovation -- are "wastes" in the classic lean sense. One of the major differences between the implementation of lean in traditional manufacturing environments and information technology is the mapping of the value stream. The physical manufacturing value stream is quite easier to visualize than the virtual stream of IT. Has any reader here headed or participated in a lean IT initiative? What were your common problems?