Final answer:
The option that is not characteristic of high-performing teams is 'Multiple team leaders', as this can lead to confusion and conflict over decisions.
Step-by-step explanation:
The core characteristic that is not typical of high-performing teams among the options provided is 'Multiple team leaders'. Effective teams usually have clear leadership rather than multiple leaders, which can lead to confusion and potential conflict over direction and decision-making. High-performing teams often benefit from diverse skill sets, which increase the team's ability to tackle different challenges effectively. A key element for team success is effective communication, which facilitates coordination and collaboration within the team. Furthermore, trust among team members is essential for a high-functioning team as it encourages open dialogue and risk-taking which are necessary for innovation and problem-solving.