50 years ago while I was at college, GE (General Electric) came in the spring to interview engineering graduates. The post went something to the effect that they wanted to interview engineering students with a 4.0 and those that had barely gotten by....down around 2.25 to 2.5.
I wasn't about to graduate but it did perk my interest and I've always been...well, nosy when my interest is perked.
I dropped by and caught the GE rep while he wasn't busy and asked why they wanted the less smart engineers. He explained that sometimes they made the best engineers, especial those that had been raised on a farm or some how had some hands on experience fixing things. He said the geniuses could dream up all kinds of wonderful stuff but lacked the know how to build it or make it work. He said the less smart guys didn't dream up to much new stuff but given a good general idea they could build anything and make it work.
Looks like GOOGLE has discovered this fact for themselves.