it is a nice graph that was shown there, however I stay a little sceptic towards these 'truths'
What I mean is that most teams have players who consistently play 50 to 60 minutes.
I wonder that if you would make a graph using teams that ONLY have players who consistently play between 40 and 50 minutes, if that graph would shift a little, or stay the same.
I also have the impression that the previous week, and maybe even the week befor that also take part in the shape system.
I have had the impression more then once the shape of players changed with a delay of 1 week (eg player plays 50 minutes and shape remains same, week after that he played33 minutes and shape went up, week after that he played 51 minutes and shape went down,...) This however is a FEEL, and I did not study it with true figures and facts...
All I want to say is that it might work a little more difficult then taking this weeks minutes and see what happens this training.
I think there might be other factors involved, and also the average situation for a team can influence it.
Back in the time where I had 22 players in my roster and I didn't realise that less then 48 minutes meant a big drop for training, I had all of my players play around 40 minutes (read once a player reached 40 or higher, he would't get fielded anymore). I managed to ditribute minutes prety good, meaning most got above 36 mintes all of the time.
Compared to the other teams I noticed my game shape was prety good, even though I never trained shape... So if you would make a curve for my team back then, I'm almost positive it would shift to the left. I never had any players playing over 53 minutes anyway, so I'd probably end up with a curve going up and leveling on the right side...
I guess that for this curve that was shown, players are taken that consistently play over 50 minutes. Which makes it very valuable for most BB teams. But there might be teams who experience the top of the curve is a little broader...
Would I have more time, I'd start plotting it for my team, but in the mean time my players also get more minutes then they used to, and besides I don't have time for that.
All I know now is that I try to keep my players between 48 and 51 minutes if possible, and that I can't say teams who have their players play between 55 and 60 have better shape.
They are not your friends; they dispise you. I am the only one you can count on. Trust me.