I personally have better luck with /castrandom than /castsequence on my druid but I also use the /cast maul at the beginning of my macro.

I also tend to put a shift modifier rotation on all of my toons on my dps macro like

Tank:
[mod:shift] Taunts, major threat gain spells, stuns, etc.

DPS:
[mod:shift] shed aggro, heal mobs target

Healer:
[mod:shift] Oh shit heals

That way if stuff does go wrong my whole group blows recovery spells at once and I only have hold shift rather than hunt for other buttons.