UWG ran its creative intake, approvals, scheduling and proofing through Workfront. The contract was ending, and most of what Workfront did could be rebuilt on tools the agency already paid for. The one thing nothing in Microsoft 365 does is proofing: pinning a comment to a spot on an image, reviewing a video by timecode, comparing version three against version four.
So the plan had two parts: rebuild intake, approval, scheduling and tasks on Microsoft 365, and buy one proofing tool. I audited, planned, designed and built it, piloted it with a real job, and trained the agency on it.