Which of the following is vital for a coalition's ability to achieve its goals?

The ability of a coalition to achieve its goals heavily relies on the authority to commit resources. This authority is crucial because it enables the coalition to allocate financial support, personnel, and other necessary resources toward the initiatives it seeks to implement. Without the power to mobilize these resources, the coalition may struggle to execute its strategies effectively or to address the needs of the community they are serving.

The other options, while they may contribute to a coalition's effectiveness, do not capture the essential requirement of having authority over resources. For example, while volunteers donating their time can be beneficial, it is not a mandatory condition for success. Similarly, having a focus solely on fundraising could distract from the broader mission of the coalition, as it limits the scope to just financial aspects rather than engaging in comprehensive community support. Finally, expecting all members to be experts is unrealistic and may hinder participation; coalitions often thrive on diverse backgrounds and perspectives, not just expertise. Therefore, the ability to commit resources is fundamental for tangible progress and success in a coalition's objectives.