Finally we can give some guidance to the programmer when he is ready to tackle the source, like moving the method body to the target, implementing the delegation in the source, and converting the uses of source members.
	(Dr. Jones builds a cross reference of which methods use which other fields and methods for use in these last two steps.)
	Dr. Jones decouples the choices of the refactoring steps to take, and the actual manipulation on the source to implement the refactorings.
	In this way multiple alternatives can be more easily explored, and the hard work of implementing the refactorings undertaken once an alternative is chosen.