I've been a part of Scrum teams and I can tell you from a personal experience that Product Owner cannot do this much in a , say, 4-week sprint. I doubt it. At l

I've been a part of Scrum teams and I can tell you from a personal experience that Product Owner cannot do this much in a , say, 4-week sprint. I doubt it. At least, during my stay, I never say Product Owners creating specs, talking to QA and etc.