GUTS not BRICS?

A recent opinion article by Bruce Jones and Thomas writing in Foreign Policy magazine introduces us to The GUTS.

http://www.foreignpolicy.com/articles/2012/05/17/meet_the_guts

Accustomed as we are to acronyms, (BRICS, NAFTA, EU) this one was a surprise:  GUTS.  Who or what?  According to the authors, the GUTS are four large countries that are increasing their international influence.  The countries:  Germany, United States, Turkey and South Korea.  Each one important in their region has seen its links around the world expand and deepen. (As we often read that the US influence in the world is declining the authors present an opposing perspective.) 

We tend to think of these countries as singular entities with some ties to each other.   The authors propose that by acting as a group will have significant power and importance.  Will we start to hear about the GUTS as often as we do the BRICS?