The editor of Philadelphia Magazine will depart at the end of the summer and wants his replacement to be someone who isn’t “a middle-aged white guy.” The magazine’s editorial staff on Tuesday called for a company plan to increase racial diversity at the publication.Philadelphia Magazine editor Tom McGrath will step down at the end of the summer, telling his staff the publication needs to evolve and the company should hire a replacement who isn’t “a middle-aged white guy.”His departure — which he described in a memo to employees as partly a personal decision and partly an attempt to bring...…The editor of Philadelphia Magazine will depart at the end of the summer and wants his replacement to be someone who isn’t “a middle-aged white guy.” The magazine’s editorial staff on Tuesday called for a company plan to increase racial diversity at the publication.Philadelphia Magazine editor Tom McGrath will step down at the end of the summer, telling his staff the publication needs to evolve and the company should hire a replacement who isn’t “a middle-aged white guy.”His departure — which he described in a memo to employees as partly a personal decision and partly an attempt to bring...WW…