Out of a team of three, my design was picked for the coporate website. I worked with a group to create the new look and layout for the site.
Since we had the general layout from the original design, we skipped wireframes and started with mockups. I first worked with my boss and immediate team, then passed the designs on for review and approval from the other departments involved.
Once the design was approved, I built the site out on our CMS's staging server. This part went pretty quickly. When ready, I got final approvals, and we launched on a pre-approved time and date.