Hack:
Forget the FYI key on your keyboard

When was the last time you forwarded on something to your team with this TLA (Three-Letter Acronym) "FYI" (For Your Information)? If your answer is "less than 3 seconds ago", then keep reading this post, it is for you ;-)
As a manager we have a responsibility to provide context and meaning in the communications we share with our teams. If we share something with them, it is because it is relevant and important. If it is indeed relevant and important, then why isn't it worth it to spend a few more minutes on that memo explaining why it is important and what it means to the team and the individuals that are part of it? If your answer is "I just have no time for it", then the problem is anchored even deeper than a communication one, it is a people management one because there should be nothing more important to a manager than to ensure that his team is receiving the right level of information in context at the right time and with the adhoc interpretation so that your people can understand why you decided to share it with them. Without that context and meaning, your team cannot make the best use of what they received, so your communication toward them is sub-optimal, which may ultimately result in your team performing not at the level where you believe they should be. If you have high expectations on them, don't forget that the reverse is also true, they have high expectations on you ! When the level of expectations is high and it is not even close to being met, sarcasm occurs. The "FYI" key I was referring to in my post earlier is just an illustration of it.