We always prepare for the worst. You can't assume somebody's going to be there, then all of a sudden he's not. You plan for this and for that. We'll prepare for the worst-case scenario and if it doesn't go that way, then we've gained a player or two.
There are organized plots and plans to get you one way or the other. But every once in a while someone gets trapped. We always assume our players are not guilty of any major problem until someone really clarifies it for us.