Ok..... so, what about.... a comments section (Facebook style) where the people can come to your team site and leave a comment (Private or Public) to you or your team.
In other words, it's a kind of Social Network in your team's website, simply and easy to implement. "It's just a section where the comments are public" the same as your team's blog, but with the difference that in this case the comments written there are public in the main page of your team. In this case, everybody can see in a very EASY and SIMPLE way the comments from other players.
Better said, we should ask the BB's to leave public the blog comments. That's it!