Whether large or small, today's software is more complex. Many resources are brought to bear to get your code from inception to release. As such many different machines, architectures and operating systems need to be tamed to work in tandem with each other for smooth operations. Thus the SCM professional needs to be well versed in Systems Administrations of these resources.
Our people have many years of Systems Administration experience in Windows, Unix and Linux Operating Systems. Additionally we have been at many clients so we have seen how shops administer their machines from various perspectives. So instead of having 10 years of systems administration experinece in one company, thus knowing only how they manage their systems, we have years of experience at many companies which helps us understand the many ways of administrating systems, some good and some not so good.