Your implementation is done, and you need to keep the lights on. Sometimes, a basic implementation is done, and now we need to enhance the system. A Salesforce® environment in the long term needs Salesforce® support either done in-house or outsourced.
Support will need to address various needs. Basic L1 admin work, L2 Level enhancements, and L3 level enhancements that can be looked at like small projects. Therefore, support requires multiple skill sets in a time-slicing mode viz Admin, Advanced Admin, Development, Business Analyst, and Technical Architect.