Reference lecture Wed 31 Aug 2011: On article - thinking small.
What I consder the gist. Quoting: 

• It's not about the big hit. It's about the incremental improvements all the time/ the constant implementation of small ideas, especially to processes or systems. 
• Encouraging a steady stream of small ideas helps prime the pump for big ones.
• Small ideas more often result in a sustainable competitive advantage.
• A suggestion for the suggestion box: Scrap it.
• The best ideas arise in group situations where the person who thinks of it has to defend it, and it's immediately critiqued by people close to the problem and often improved.

Hope this is useful.
Cheers!
Jovin Hurry