I recently attended a training session on effective messaging, led by Oratium, a team dedicated to improving communication. (Disclaimer: I am not affiliated with Oratium, nor will I receive any compensation for this post.) The two-day event left me with a lot of great information, but what really resonated with me, and I hope will stick with you is: stop fire hosing. Stick to key messages and communicate them in a way that your audience will receive them.
As marketers, we have so much information we want to share, but to be effective we need to stop blasting a bunch of information at people in hopes of something sticking (preferably the most important point).