1. Trading for Trent Williams
San Francisco’s best acquisition during the draft wasn’t even one of their picks. It was the trade that brought left tackle Trent Williams to the 49ers. After getting word of Joe Staley’s pending retirement, the team went to work on a trade for Williams, who was Washington’s first-round pick in 2010 when Kyle Shanahan was the offensive coordinator there. Early reports of a Williams trade indicated it would take at least one first-round pick to pry the seven-time Pro Bowler out of Washington’s hands. San Francisco wound up trading a 2020 fifth-round pick and a 2021 third-round selection to snag him and quickly fill the massive void left by Staley’s departure. Protecting Jimmy Garoppolo’s blind side is vital, and there aren’t many players better at left tackle than Williams. Getting him for a fifth and a future third makes this the best move by the 49ers’ front office this offseason.