Absolutely. As
@Slumberfreeze said (and despite my earlier comment on an elder resembling the oldest patriarch within a nuclear family), I do think elders would primarily function as a group so as not to allow personal disagreements with an individual get in the way of sound leadership. Of course, there are other options that would likely be taken prior to booting someone out, which would not be unlike, at least in principle, disciplinary actions within a family.
I agree with this, and, once again, it isn't unlike a family structure. Anyone who lives under my roof is expected to abide by my rules. If they don't like my rules, they can leave.
Taking this a step further, I am not referring to just following the rules. I think every member of a household, with the exception of those who cannot due to age or illness) is expected to be a contributing member in some fashion. Is that not also true of a body of believers?
Of course, and I also believe an elder can release himself from the responsibilities of being an elder, but stay within the body. An example might be someone who recognizes they are becoming frail in their mind, such as one with dementia or Alzheimer's.