By Tony Cozier
The astonishing fluctuations in the on-going Ashes series have defied even the most qualified observers to explain the inexplicable.
It was beyond the comprehension of triumphant captain Alistair Cook after his England team had completed the demolition of Australia before lunch on the third day at Trent Bridge yesterday to regain the holy grail of Test cricket between the two oldest and fiercest rivals. It was,
