Shouldn't the substitution be the same because stamina training improve the stamina for the whole team right, or does it works in an other way? And I was thinking that by improving stamina will actually improve game performance from this link,
(http://buzzerbeater.wgz.cz/stamina-and-gs-effect-on-dmi.)
Is the information correct?
Or correct me if I perceive the information wrongly, I read the % as the grade for their performance in game.
And another question, will pitiful stamina cause the player to play badly, or they will perform with their high stats only for awhile.
stamina does positively impact on average performance. to me, it gives your team more continuity and improve average defense (impacted by stamina as "fatigue" when strongly attacked). Your overall team performance will increase. A "pitiful" player will start at top and sharply decline, a "respectable" will start at top and will keep it steady.
I cannot comment that study - by definition I assume it's good. Probably you're right on understanding of it.
However, there are two factors to consider. First, average manager keeps player at low stamina (as far as I experienced) as prefer to train them. So your stamina should be compared with others'. In other words, you have (and it's part of each manager decision and strategy) to decide if better stamina (whole team, small effect per player) or primaries. In playoff time, I would also consider general, aka shape. If you have 8 or 7 or 9 can make a lot of difference, and shape fluctuations are far larger than ones related to stamina (my opinion, not study). My regret is that this week training pushed my top player to 88 minutes, starting from very close to 9. By the way, with two trainings in JR mono he increased max DMI (not 9 in shape this season, unfortunately) from 800K to 950K!
If you have key players with pitiful stamina, probably you should consider stamina, but don't forget overall advantage (increasing 2-3 means +50%, 6-7 means 18%... my JR said more than 20%, although there is some shape hidden effect I cannot precisely evaluate... my shape pushed from 300K to 900K DMI... 200% !!! But I don't believe THAT would be the effect!).
So one option could be to train primaries then boost by general. Of course, if you have pitiful ... some stamina will hope.