ISSA, the worldwide cleaning industry association appointed John Barrett executive director, effective Sept. 1, 2015.  Barrett replaces John Garfinkel, who will work in a consultative capacity through 2016 to facilitate a smooth transition.    Under Garfinkel’s 25-years of leadership, ISSA evolved into the leading organization for the global cleaning industry, having grown from 3,000 to 7,200 member firms worldwide. Garfinkel leaves the organization in a position of strong financial strength wit...