Lions’ versatile Dahl could tackle void left by Decker

Players give their impressions as the Detroit Lions' full team takes to the practice field for the first day of training camp, Tuesday, June 13, 2017, in Allen Park.Daniel Mears, The Detroit News

Allen Park — When offensive lineman Joe Dahl arrived in Detroit a little more than a year ago — a fifth-round draft pick out of Washington State — his skill set needed to be completely retooled.

A two-year starting left tackle, who earned first-team All-Pac 12 honors and was named a second-team All-American by USA Today as a senior, Dahl wasn’t used to playing out of a traditional three-point stance. And his run-blocking techniques essentially had to be built from the ground up, having rarely…