Information Technology Governance is a topic that IT managers at smaller (and even larger) organizations seldom address as it often seems unneccessarily complicated. Governance is nothing more than defining your operational processes to get them out of people's heads and into a form where the knowledge can be transferred to new or replacement staff. This is your first step.
Once you have even a few basic operational tasks definined you can begin to establish baseline metrics around the performance of those processes and then analyze the data for trends going in the right direction to build upon or trends going in the wrong direction to remediate.