Teams are right on the border to me. They are fun yes, and they can be beneficial to gaining experiance in the clanning world. But as thiesje rightly says, it can make members less active towards a main established clan; which is bad. In my clan, I find that those in any teams, GWD or Clan wars, get less active after time. We can't really tell them not to spend time with there team, but there are a few rules about them. It just stops the members from getting seriously inactive.