How often do you hire new staff members?

This question is pretty good because some forums can run with a few staff members, where others need a whole lot of staff members.

So, the question remains how often do you hire new staff members? I'll start off by saying I usually hire new staff members if I've fired a staff member or two, and I believe someone else can do their job better or something. But, I haven't hired any new staff members in about a few months now, and I don't think I'll be hiring anymore in the future because we already have enough staff members.

But, is there such a thing as having too many staff members? Or what do you think?

 

Just now I think I have plenty of staff
There is me and 2 mods and we do only have 110 members
I might get one more when we have more members