I disagree that game shape is a total wast of precious training. If you are trying to win games, training GS is a great thing to train so that your players play at their best.
I believe one of the finalists of the B3 tournament in season 11 got there by training GS every week during the tourney. It all dpends on what you are trying to accomplish, I guess.
Once I scored a basket that still makes me laugh.