With organized team activities in full swing for the San Francisco 49ers, the biggest on-field question the team must answer is at cornerback.
The team is undergoing a major transformation at the position. Two of their top three cornerbacks last season -- Carlos Rogers and Tarell Brown -- departed this offseason. Rogers was cut and Brown left in free agency. Both signed are now with Oakland.
Tramaine Brock, who was superb last season after starting camp as a special teamer, has emerged as the team's best cornerback. Chris Culliver, who could be subject to an NFL suspension after a felony arrest this offseason, is set to start. He played well in 2012, but missed all of last season with a torn ACL.
Rookie Jimmie Ward, the team's first-round pick, is a safety, but he will play the nickel cornerback spot this year. He has experience there. Veterans Eric Wright and newly signed Chris Cook and second-year player Darryl Morris are among those who also have a chance at playing time. ESPN's Matt Williamson believes Cook, a former second-round pick who failed to live up to expectations with the Vikings, can improve as a 49er. He is big and physical and a good fit for the defense.
While there are question marks, the truth is, the 49ers were looking to move away from Rogers and Brown and think this can be an upgraded spot. The 49ers are very confident with their defensive coaching staff. Brock developed quickly and their cornerbacks this year can thrive as well.
In the long-term, this position is still a work in progress. Culliver is a free agent after the season and Ward is a long-term safety. The 49ers will likely add to this position next year and hope recent draft picks, Dontae Johnson, Keith Reaser and Ken Acker can help next year. Johnson could even figure in this year's plan.
Again, this position will be a storyline all summer, but the 49ers are comfortable with it at this point.