From time-to-time, I enjoy checking-in over at CombineNotes, a CombineNet sponsored blog. CombineNotes digs into everything from advanced negotiation and combinatorial -- they now call it "expressive" – bidding approaches to back yard BBQ recipes. It's a fun mix of sourcing and culture. Back in September, Paul Martyn, CombineNet's CMO, came up with a sourcing analogy that I thought would be worth sharing with Spend Matters readers. In his post, Paul compares solving a Rubick's cube to making the right sourcing decision. He writes that a "3x3 Rubik's Cube has over 43 quintillion positions, a vast unfathomable amount also expressed as: ~4.3 × 10^19. But, if you know the right combinatorial magic, ANY cube can be solved in 29 or fewer moves. A 12-year-old boy in 1981, according to the article, wrote a book on some techniques to solve a Rubik's Cube, selling 1.5 million copies ... Sourcing is another puzzle with seemingly endless possibilities, and we say Expressive Commerce is the same kind of elegant solution." Check out Paul's post and decide for yourself whether you think he's onto something or if he's simply drinking too much Pittsburgh tap water.