The impact of weekly can be both positive and negative. For the positive impact like someone said earlier, it improved communication and alignment... among team members, opportunity to share best practices and discuss challenges, better tracking of progress towards goals etc.

Negative impacts could be time away from selling activities, overemphasis on reporting rather than strategic discussion.

Hence, it is both positive and negative impact on sale force.
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it help us in team building and encouragment

The weekly meetings builds up the team energy and synergy by building self and internal work pressure/force through previews and reviews and ensuring... that the previous gaps are put into plans and consideration to ensure a good weekly, monthly , quarterly eventually yearly landings of the business revenue, volumes and value  more