What I'm suggesting is that you should add a feature in the teams for the members to post messages so that everyone can see them, (I'm not talking about the team chat I'm talking about adding a new tab where posts can be added, instead of chatting) an example for how you would use these messages for would be for example the rules that the team has, you could post rules and other important information that the Leader and co-leads want the players in their team to know or think about. Another thing that in case ever added is the feature for the Leader and Co-leads to pin those messages so they are at the top. It would work like Reddit. Also, it would be convenient if you could add comments to these messages as to leave a conformation that that player has read the message.
This type of feature would be appreciated and it would make things easier for leaders to spread messages to the whole team instead of hoping that everyone will be online and see this new rule you just added.