COMINGS AND GOINGS >>?Target has hired former Nordstrom executive Mark Tritton (pictured) as executive vice president and chief merchandising officer. >>?The World Federation of Diamond Bourses has reelected Ernest Blom to a third consecutive two-year term heading the group. Israel Diamond Exchange president Yoram Dvash was elected vice president; Rony Unterman of Belgium continues as secretary-general. Bharat Diamond Bourse vice president Mehul Shah was elected treasurer-general, replacing long-standing officeholder Dieter Hahn. >>?Lisa Bissell, the former Fabrikant executive who headed Pure Grown Diamonds for two years, has left the company. No replacement was named, but the company has hired Alan Cohen, a 35-year industry veteran, as vice president of sales. Kendra Bridelle >>?Industry veteran Kendra Bridel