Celtic were a broken club in the first half of 2000. They were beaten by part-timers Inverness Caledonian Thistle in the Scottish Cup, a defeat which prompted the Mary Poppins-themed headline: 'Super Caley go ballistic, Celtic are atrocious'.
They were way off the pace in the Scottish Premier League, finishing 21 points behind Rangers.
Then Martin O'Neill took over. Striker Mark Viduka, holidaying in Australia at the time, told his new manager he wanted to leave.
'Fine,' said O'Neill, who sold Viduka to Leeds for £6million and used the money to sign Chris Sutton.