Final answer:
The responsibility of identifying problems and solving them lies with proactive individuals who possess problem-solving skills and take responsibility for finding solutions.
Step-by-step explanation:
The person responsible for identifying problems in our system and taking the initiative to solve them is often referred to as a problem solver or a proactive individual. This role can be found in various settings, such as organizations, teams, and communities, where individuals step up to address issues and find solutions. These individuals possess the willingness to take responsibility and the ability to analyze problems, propose ideas, and implement actions to resolve them.