I don't think he means lean as in (http://en.wikipedia.org/wiki/Lean_manufacturing http://en.wikipedia.org/wiki/Lean_manufacturing) ... but lean as in the liter

I don't think he means lean as in (http://en.wikipedia.org/wiki/Lean_manufacturing http://en.wikipedia.org/wiki/Lean_manufacturing) ... but lean as in the literal definition: thin - meagre - meager - skinny - spare - gaunt - scraggy