After nearly two decades of enjoying the life of the privileged
and relying on the greatest closer in baseball history, the
Yankees are about to find out how the other half—or really, the
other 29—live.  With Mariano Rivera now retired, the Yankees
will turn to David Robertson as closer next season. In theory,
he's as good a successor as one could get: a homegrown Yankee,
an All Star, a strikeout pitcher who has posted ERAs of 1.08,
2.67 and 2.04 over the last three seasons.  But there is a
problem.  David Robertson, right, will succeed Mariano Rivera as
the Yankees' closer. Robertson is 8-for-18 in career save
chances. Getty Images  As the eighth-inning setup man, Robertson
has been spectacular. In the seventh and eighth innings, over
his career, Robertson has compiled a 1.99 ERA. He's as elite a
setup man as one can find.  But in the ninth inning? Not so
much. When thrown into the fire, Robertson has been badly
burned.  In his short career as a fill-in closer, Robertson has
blown 10 saves and successfully s