Taking knowledge from one pursuit and applying it creatively to another....

A quote here from David Epstein's 'Range - How generalists triumph in a specialized world':

They (successful adapters) 'traveled on an eight lane highway', he wrote, rather than down a single-lane one-way street.  They had range.  The successful adapters were excellent at taking knowledge from one pursuit and applying it creatively to another, and at avoiding cognitive entrenchment.

A simple example of this is to use other sports to develop skills and problem solving abilities that we can transfer across onto the tennis court and visa versa.  The time-honoured, world-wide game of 'tennis football' is a great example.

I've always enjoyed coaching footballers to play tennis - they come with a higher sense of orientation around and behind the ball, having to appreciate on the football pitch how a ball might behave, where it's going to land, and where do I need to position by body on balance to be able to control it and send it on.  A classic 'receiving and sending' sport.