Originally Posted by vilcas

144 times 3 is 432 and 180 times 3 is 540. If Delta hires at least 432 people and puts them in class in 2015 then all 144 SSP hires must go to class. In 2016 the number of SSP hires in class goes up to 180 during the year as long as Delta place 540 people in class that year. Based on current numbers and estimates for future annual hiring numbers, SSP will go at the maximum rate.