OKR champion
An OKR champion is a trained person inside a team who guides colleagues on writing and running goals, and keeps quality high after external help has left. They are the mechanism by which a method survives contact with a busy quarter, because standards drift without somebody whose job is to notice.

Why the role exists
Every rollout looks good in month one, when the consultant is still in the room. What decides whether it holds is what happens in month seven, when a team is under pressure and the easiest thing is to write last quarter’s goals again with the numbers changed.
A champion is somebody in that room who notices, and who has enough standing to say so without it being a fight.
What makes a good one
Credibility over seniority. The best champions are usually respected practitioners rather than managers, because the job involves telling people their goal is a task in disguise, and that lands very differently from a peer than from a boss.
Genuine interest, too. This is an extra responsibility on top of a real job, and somebody who finds the craft interesting will keep doing it. Somebody appointed because their name fit an org chart will not.
The common mistake
Picking by title, then giving the role no time. A champion with no protected hours is a name in a document.
The second mistake is one champion for the whole company. That is a bottleneck, and it recreates the dependency you were trying to remove. One per team, meeting occasionally as a group, holds much better.
What is an OKR champion? +
A trained person inside a team who guides colleagues on writing and running goals and keeps quality from drifting after external help has left.
Who should be the OKR champion? +
A respected practitioner with genuine interest in the craft, not necessarily a manager. Credibility with peers matters more than seniority, because most of the job is honest feedback on other people’s goals.