I have a client who uses lean and agile-like processes outside of IT on research and development projects. They have been doing this for a number of years to help optimize constrained tools (drilling platforms) and resources (specialist inspectors). They like the agile concepts of prioritizing based on business value, working in short cycles, expediting rush jobs and frequently validating results and adaptation.
Recently they asked for help with some improvement initiatives that use multi-disciplinary teams to investigate and improve cross-department processes. These groups are staffed by senior engineers who volunteer to help make improvements, but the work is low priority and their time extremely limited. They are also geographically dispersed. Obviously that creates problems for agile practices like daily standups if team members get on average of two to four hours per week to contribute on an initiative.
At first I saw lots of challenges--agile promotes dedicated teams (co-location where possible), daily conversations with business stakeholders, etc. These groups had none of those things, yet three months later they were pleased with the successes they had. It seems when you are trying to coordinate the work effort of distributed, low-availability resources, the structure and visibility of tasks that agile brings is a great strength.
This somewhat counter-intuitive application makes more sense when you consider how such improvement committees traditionally function. Historically, similar work groups had faltered and failed to deliver benefits. The company was mature enough to look for inter-departmental improvement opportunities, but because it was no one’s full-time job (and they spanned departmental jurisdictions), work started but then failed.