Oh bugger! The load of action and stress I want to give one character clashes with a different load of action and stress I want to give to another – Both events have to stand out, both are extended (these are not small events), but they simply cannot run side by side – I don’t even want them to overlap.
That means delaying one side (which one?!) while playing out the other. Deciding which one goes first means completing both sequences and extending both threads, each the length of the other, to see if the beyond that point works against the backdrop of action from whichever the second side shall be.
Does that make sense? No? Welcome to my life! (Where’s that freaking coffee?)