Holacracy Community of Practice Archive, 2015-2019 Community Holacracy Web Site

I will add that an agreement that states what type of work an individual will do may be necessary... someone needs to take out the trash; so you may bring someone on for specific work such as administrative work, logistics, or software development for example.

You can build this into a person's core agreement (like an employment contract), and then they would have to take on those roles when asked to fulfill their commitment to the organization. 

Some of what has already been shared relates to processing these tensions using Holacracy itself; try the Governance process to see what you can come up with in your organization to address the tension, like some members others have done.

(In our organization we have a process for providing other roles that fill roles when no one wants them, not only lead link to distribute that issue, and a process for prioritizing our attention across all our roles like the Attention Points Tyler is describing.)