Awesome idea. While I think a focus on gg would be great, I think using bb player submitted replays would be a great addition, as it is something that BB offers which you cannot get from GG, similar to newbie tuesdays by day9. an emphasis on lower-level play and how to improve / step up your game in an broad sense would be great, especially while utilizing viewing match submitted by the players themselves who want to learn. Breaking down and really stepping back to look at a tangible player's set of strengths and weaknesses sounds like a great way to help improve oneself.
looking forward to it.