I used to play a couple years ago. Since then I have played Dota 2 and Counter-Strike: Global Offensive. These are both very team-based games as well, and incorporate some of the same team dynamics. In Dota 2 I played mid and in Counter-Strike I coached a few teams (and may still be).
My record only shows that I played in steel leagues seasons ago, and that is because I didn't have the time to devote to playing with a team. Back then, I was playing pugs with platinum, open, and IM players many times throughout the day. I just played in the leagues with friends for something fun to do. If you look at my logs right now, I may be dropping ubers because my mouse is a little broken at the moment. Sometimes the right click decides to only work 50% of the time, so that is something I am going to have to replace.
With a team, I am sure that I can fit in really well. I'm personal, and play much better in a structured format than in a pug.
I don't really know what to say in these kinds of things as I have never looked for a team, here are some links you may find useful.