When you know your cast well and their strengths and weaknesses, you can start writing for them, just the way Shakespeare wrote for his actors.
Stephen SondheimTODD: The history of the world, my love -- LOVETT: Save a lot of graves, Do a lot of relatives favors! TODD: Is those below serving those up above! LOVETT: Ev'rybody shaves, So there should be plenty of flavors! TODD: How gratifying for once to know BOTH: That those above will serve those down below!
Stephen Sondheim