I’m a huge fan of rebound nets for self reliant individual or paired practice when working with keepers and fielders. The Crazy Catch helps sharpen reactions, builds technique and can be used to unlock movement patterns.
Wouldn't it be handy to know the exact natural spell of every bowler? As a captain, coach or even bowler, you will be able to use your best time, and rest when you know you are tiring. Every bowler - no matter how fit - has a natural spell length.