I'll try to be clearer than the title.
I use 7 day lineups and sim 1, 2 or possibly 4 or more games at a time. When certain events occur, say an injury, that stop the sim, I'll go ahead and place the guy on the DL and reset my roster. After that I redo my 7 day lineups.
The problem is that sometimes the day has not advanced due to the event. If I forget this and redo my 7 day lineups the advance to the next day offsets the pitching rotation and can cause the AI to start the wrong pitcher.
It's a subtle problem but bothersome. I think that the pitching rotation should not be tied to the 7 day lineup but set by the rotation established on the pitching page.