For the head honcho along the sidelines, the E-ink Electronic Coach Playboard is your cup of tea (REAL MEN DON’T DRINK TEA!...sure).
The brilliant design from Gordon Yeh has taken the most important tool that a bench boss has (other than his knowledge of the game) and made it into a multi-functional, paperless masterpiece.
The E-Ink Playboard starts out as a blank slate, but can be converted into a playing field of any sport you want. Your illustrious game plan can then be outlined with the trace of your finger.
For any coach, this would save time and stress (which you can bet there is a lot of).