"Due to a temporary shortage of train crew on Saturday 17 March, London Midland services on the following routes may be subject to cancellation or have amended stops:
Birmingham New Street to Northampton / London Euston
London Euston / Northampton to Birmingham New Street
Birmingham New Street and Rugeley Trent Valley.
If your train is cancelled, please catch the train scheduled to run directy before or after the cancelled train, or speak to station staff at manned stations. Some cancelled trains may be replaced by buses.
Passengers may use Virgin Trains services on all reasonable routes."
Siounds fishy to me. And doesn't the helpful travel advice "If your train is cancelled, please catch the train scheduled to run directy before or after the cancelled train, or speak to station staff at manned stations. Some cancelled trains may be replaced by buses" really sound like an on the ball, well organised operation.