Nick Bosa, Trent Williams at 49ers’ offseason program to help teach “the standard”

The 49ers turned over their roster this offseason.They parted ways with eight starters, who have a combined 54 years of NFL experience. They added 17 rookies to the roster and have 38 players on their 90-player roster who have two or fewer seasons of experience.This 49ers team, unlike recent 49ers teams, is young and inexperienced.49ers coach Kyle Shanahan urged his team leaders to participate in the voluntary offseason workouts to show the way."We've had so many players who have owned those [starting] spots for a while, and so some rookies come in and they just sit back and watch those guys. They learn that standard," Shanahan said, via Eric Branch of the San Francisco Chronicle. "But now I don't feel we have as many of those guys as we've had in the past. We've got to re-show that standard to all the rookies that came in last year. All the rookies that we're adding this year. We have guys that know how to work the right way, and football means everything to them. But half of our team hasn't seen that."49ers General Manager John Lynch said last week that nearly every player was in attendance for Phase 1, which is two weeks of strength and conditioning. The attendees have included...