Defending against spin has changed a lot over the past few years. This is particularly notable at the top end of the game where DRS has been introduced. Umpires generally give out more LBWs when bat and pad are next to each other.
"It is not only useful for staff who are experienced but a valuable tool for those subject staff who have to take teams."
The variety of sessions across sports - sometimes we steal session ideas from one sport and use them with another.
As we enter the business end of the competition, we take a look at the remaining eight teams and the key talking points surrounding each side.