Team has a workout for Petrowski

San Francisco 49ers players aren't around their Santa Clara headquarters right now because the team is on its bye week. However, they will return next week to begin preparations for the Indianapolis Colts. The off time is a good opportunity to listen to analysts like Greg Cosell, who joined KNBR today and shared his thoughts on rookie quarterback Trey Lance's first start this past weekend, a 17-10 loss to the Arizona Cardinals. What did the respected long-time analyst think of the 21-year-old's starting debut? Lance ran the football 16 times for 89 yards, which was a bit unexpected considering head coach Kyle Shanahan had said that fans could expect the rookie looking more like a quarterback and less like a running back in the game,