I think F1 also needs a more formal re-start strategy. As it was, each time the safety car came in, Alonso floored it and essentially restarted the race wherever he felt like, whether it be coming out of the final chicane, or even as early as the corner before that. This caught everyone else flat-footed. A green flag at the flagstand seems to work just fine for controlling restarts in other racing series, so perhaps F1 should implement it. Or maybe the flagman only knows how to wave a checkered flag