Stribling’s ascentStribling, the 49ers’ top pick this year at No. The 49ers’ initial plan called for Stribling at the “big slot” position, an inside role formerly held by Jauan Jennings. How Height, Halton, and Dugger fit a new schemeOn defense, linemen Romello Height and Gracen Halton have been the 49ers’ early rookie standouts. “He makes grass disappear,” 49ers defensive line coach Kris Kocurek said. Along those lines, Jaden Dugger — a fifth-round pick — is most representative of the 49ers’ changing defensive strategy.