Therefore , in 1991 the PGA TOUR dropped the course as a host of the event .
Therefore , in 1991 the PGA TOUR replaced it with Poppy Hills , who were part of the rotation of courses up until 2009 .
Therefore , in 1991 the PGA TOUR dropped the course as a host of the event and replaced it with Poppy Hills , who were part of the rotation of courses up until 2009 .