We all know that Kurt Warner retired, and Matt Leinart is the(Presumed)starter.  But many don't trust Matt Leinart to take the Cardinals back to the playoffs, and then the ultimate goal of the Cardinals, the Superbowl.  Some people have been interested in Donovan McNabb.  Others think we should trade for a QB.  The QB is the core of the team.  Without a good QB, the team itself is in danger.  What do you think the Cardinals should do about their QB problem?