This is not my area of expertise, but we have an in-house team that did the implementation. Technically, I believe some of that in-house team are contractors, and some are employees.

We implemented in-house, as we are an implementation partner.

mix of both in house and external consutants (with myself as the main co-ordinator).

I implemented and deployed the solution. You need a good requirements evaluation for design and a good architecture.

An in-house team implemented it, because we are an IBM Business Partner.

I implemented our internal deployment myself and I also deployed it for customers.

We provide implementation of Connections as a service and did it ourselves.

I am an implementation specialist for Connections; I am the guy that gets called in to do the installation. Experienced clients (who have had the system for a while) can do an upgrade themselves; an initial install might be a bit more difficult without an experienced hand to help.

We did the implementation by ourselves