At Helmut Lang and Coach, a Debut and a Decade Later

NEW YORK — With the SAG-AFTRA strike stalling her cinematic career, Jennifer Lopez apparently had plenty of time to attend the Coach show, held in the soaring New York Public Library. Accoutered in a fringe western jacket, cowboy-esque boots and what were either tiny shorts or perhaps no pants at all, JLo, a global brand ambassador for the house, took her seat and watched as the first model, with delightfully messy hair and clad in a…