Mistake#4: The stand-up meeting is not a planning meeting.
At many stand-ups, I've observed that the meeting starts with a keynote from the ScrumMaster on a new requirement, which he just received or learned about. The ScrumMaster explains it to the team and asks whether the team can drop one of the other requirements and pick up this new one.
Once this discussion begins, no one gets the chance to share their updates, and the stand-up turns into a planning meeting. In such cases, I suggest that the ScrumMaster stick to the pattern of stand-up meetings. To discuss a new requirement, arrange a 15-minute meeting just after the stand-up, include the development team and product owner, and there discuss the requirement, its priority, and so on. - See more at: https://www.scrumalliance.org/community/articles/2014/july/7-mistakes-during-the-daily-stand-up-meeting#sthash.HK3sSKLZ.6R7NF32l.dpuf