Some people are very bossy and like to tell everyone what to do, but of course they do not assist in the efforts.
Some people never seem to be motivated to participate.
They are content to watch while others do. Some people are better standing on the sidelines and describing things, engaging in chit chat, and basically staying out of the way. They can also be gifted at finding fault with the way others do things. Some people are always looking for ways to cause problems. They look for others to agree with them.