GREEN BAY, Wis. (AP) -- While the coaching staff may have decided who'll play where, the players in the Green Bay Packers' still-in-flux secondary swear they don't know where they'll be lining up in Sunday's regular-season opener against the San Francisco 49ers.

This much is set: Veteran Charles Woodson will play safety in the team's base defense and work in the slot or roam around in the nickel and dime defenses. Cornerback Tramon Williams will match up each week with the opposing team's best receiver. And third-year safety Morgan Burnett remains a starter.

But the questions that were at issue throughout training camp apparently remain: Who'll start opposite Williams at the other cornerback spot in the base defense? Which of the team's young safeties will come in for Woodson in the nickel and dime packages? And who'll serve as the sixth defensive back in the dime?