It’s a tricky and important job to assemble a board, committee, or task force. You try to balance demographics and pay attention to constituent representation. You need expertise, but don’t want everyone so entrenched in the status quo that they are unable to innovate. You want thinkers, but may also need “doers”. You may strive to have certain skills present, but you may also want to give new voices a seat. And you need to keep the group to a manageable number, or they’ll spend as much time finding a time to meet as they spend doing the work.
One tool to help with this task is an attribute list. I wrote about this (dot #684a) as it relates to interviewing and hiring, but it works just as well to define committee composition. Rather than picking people based on history, position, or interest, take a few moments to write out the key characteristics you are seeking in your group. You may even create a matrix, as each member will likely meet several needs (e.g., skills, demographics, etc.).
Not that a committee compiled by popularity, legacy, or random selection would necessarily be bad, but one chosen with intentionality is likely to be much stronger. Give your ad hoc “hiring” as much attention as you do permanent spots by clarifying in advance the role you are trying to fill.
