In the past four years, we have grown from a modest dozen initial employees to the current count of just over 100. Sigil is comprised of, 33 artists, 30 designers, 13 programmers, 13 customer support staff, 7 production staff, 3 community/marketing staff, 1 very, very angry and slightly off balance monkey, 3 administration staff and management (not to be confused with the monkey).
As you can see, it takes a big team to make an MMO and we'll have even more by the time we ship. Sigil employs a wide variety of people - young guys just starting out, old folks who have had a lot of experience, and even people over 30. When undertaking a project as massive in size as an MMO one of the challenges in managing a team this large is being able to actually find the right people.