Perhaps now the difference was significant enough for the coach to notice. This has also happened to me some time ago. i have avoided it with using reserve spot when starter and sub have a big difference in quality. You can see minutes for sub increasing whenever you use your backup as a starter. Playing starter sub with no blowout and foul trouble nets you 39 and 9. Playing backup as starter nets you 30 and 18. With even stamina considered and no forced court time.