Mr. King, the education commissioner, said he realized it was difficult to train people on an evaluation system that didn't yet exist.

WSJ: State Warns School Aid Is at Stake

The match starts at 17:15 BST, with some supporters concerned travel back to Greater Manchester will prove difficult as the last train from London Euston to Manchester is at 21:00 BST and the last train to Wigan is at 20:31.

BBC: Wigan Athletic fans

Another benefit: The doors can improve the efficiency of trains because they make it more difficult for passengers to hold open train doors.

WSJ: Subway-Push Prevention Solution Would Be Very Costly for the MTA

Resolving this conflict between the government's desire to promote competitive behaviour and train operators' desire to secure their investment is difficult.

ECONOMIST: After privatising