Tube staff were told that the first jobs will go in April after a 90-day consultation period. Jobs will go in finance, IT, human resources, procurement, legal and administration as part of an attempt to save £2.4 billion in the next 18 months. The Tube has 20,000 staff - swollen by 7,000 from failed maintenance giant Metronet. There are another 28,000 staff working for TfL. The axe will fall first on non-permanent and contract staff.