But Thomas wasn't terrible with the 49ers. He played for San Francisco for four seasons and was decent, starting 30 games. He just wasn't worth that high of a draft pick. So the players I chose for this list were mostly players who were awful while with the 49ers.
Here are the six worst first-round draft picks in 49ers' history: 6. DT Kentwan Balmer, 2008... 5. DT Reggie McGrew, 1999...