CHICAGO -- Just like last week, the Bears were counting on rookie Nathan Enderle to engineer the offense if starting quarterback Caleb Hanie goes down with an injury Sunday against the Kansas City Chiefs.
Despite signing Josh McCown last week as the primary backup to Hanie, the Bears named him to the inactive list for Sunday's game, leaving Enderle as the only other quarterback on the active gameday roster.
According to multiple sources, McCown struggled throughout the week of practice, which is to be expected, considering the quarterback hasn't played in the NFL since 2009. Bears coach Lovie Smith admitted as much on Friday after the team finished its final day of practice in preparation for the Sunday matchup.
The Chiefs were forced to turn to Palko after Matt Cassel suffered a season-ending injury to his throwing hand, and the results so far haven't been good. Palko threw three interceptions in each of his first two starts and committed seven turnovers in all during that stretch.
Kansas City claimed Orton, the former Bear, on Nov. 23 after Denver waived him. Chicago and Dallas also put in claims, but the Chiefs got him because they have a worse record.
Other Bears inactives included starting quarterback Jay Cutler (thumb), nickel corner D.J. Moore (ankle), offensive lineman Ricky Henry, tight end Andre Smith, linebacker Jabara Williams, and defensive tackle Anthony Adams (back).
Moore was named to the inactive list for the third consecutive game, and Corey Graham filled in at nickel corner. The club's special-teams ace, Graham has intercepted a pass in three consecutive games as Moore's replacement.
Adams, meanwhile, has started eight games this season, but was inactive for the second consecutive week.
Michael C. Wright covers the Bears for ESPNChicago.com. Information from The Associated Press was used in this report.