When Flip-flops are Good

You know how when Obama said his position on gay marriage was "evolving," everyone knew what that meant?  The Daily Caller has a piece detailing the myriad of shifts and changing policies within the Obama Administration -- from the troop surge in Afghanistan to the Nobel Peace Prize and everything in between.  Have these changes been described by the MSM as flip-flops?  No.  They are described as "evolutions."