As the Wikipedia definition states, the product owner cannot be the ScrumMaster. For non-agile folks, that also means that the proDUCT manager cannot also be the proJECT manager. It’s the fox in the henhouse. It says the person who owns the scope of the project cannot also determine the schedule. And besides, it’s a different skill set. Project managers typically work with a product for one iteration or release; product managers work with a product throughout its life cycle.
ProJECT managers focus on scheduling the deliverables for a single release.
ProDUCT managers focus on the business over the product's (multiple) releases.
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