Starting QB Matt Leinart will miss the next 6-8 weeks after breaking his left collarbone against the Rams last Sunday.  Leinart had been having a rough time in his sophomore season as he has completed 60 of 112 passes (53.6%) for 647 yards with 2 TD passes and 4 Interceptions (61.9 QB Rating).  He also has carried the football 11 times for 42 yards (3.8 ypc).  The Cardinals are lucky enough to have a QB that was splitting time with Leinart ready to go.  Not only that but he has been an MVP of the NFL and he has won a Super Bowl as a starting QB.  The offense might even take off under Kurt Warner as he has played well this season.  He has completed 43 of 69 passes (62.3%) for 580 yards with 4 TD passes and 1 interception (102.3 QB Rating) so far this season.  The problem for the Cardinals is that they don’t have a backup QB on the roster.  Look for them to sign at least one in the next couple of days.