Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Who was the director of the episode written by Russell T Davies and James Moran?

### Inputs:
table_name: table, columns: ['Children of Earth', 'Run time', 'Writer', 'Director', 'Original airdate', 'Viewers (including HD) in millions']

### Response:
SELECT Director FROM table WHERE Writer = russell t davies and james moran