Sending emails to your downline is a great motivation because your downline knows you are a team builder. Make those emails short, simple and sweet.
The objective of your emails should be of relevance and specific to what is required to be done by an EA, ( ie: duplication, transfer buying and advertising SFI and TripleClicks) to build a prosperous online business.
Your Constructive criticisms should motivate your downline to achieve their goals.