[weaversam8]

For teams skeptical of Slack, I encourage you to just try it, and see how useful it is to you. Although it seems simple, it can replace almost all other avenues of communication.

If you pay (or have a nonprofit) for the standard version of Slack, you can invite guests to different channels. This is extremely useful as you can create channels to talk with other teams/parents/sponsors and they only have access to that one channel. Us and 4561 had a channel after we became friends with them at our second district event and we chatted on that all through the rest of the season. Really great software.