Can someone help me understand the difference between these two and how, if at all, they work together?
Is Stamina an intragame rating and Game Shape an intergame rating? Meaning if a player is playing at 100% with Respectable Game Shape he might play at 125% with proficient game shape but as the game goes on that value decreases with his ciminishing stamina? Can a high game shape offset a low stamina or are you forced to train stamina to a high level if you want your player to play at a high level all game?
Thought that it simply was indicating the current form of the player. If the player plays too much his form decreases and if he does not play enough it also decreases. The form of course realistically should depend on both if you play too much and never get rested and whether you got enough playing time and feel that you got confidence from your manager.
Stamina should just indicate how good your stamina ability is when in top shape. When your game shape the stamina in a specific game is likely to be worse than your current top capacity and that should be the case with other things as well. When you got a poor game shape you likely will have lower shooting percentages and so on.