Most people would say that Superbowl XLIII was an exciting game and largely well-played. Is that true? How do casual fans evaluate success? Kurt Warner likely performed better than Ben Roethlisberger (112.3 to 92.3 passer ratings) and Larry Fitzgerald likely outplayed Santonio Holmes. Yet the Steelers’ performances will linger in the memories of the masses because they succeeded under pressure and created defining moments. A more arbitrary P.E.R. might have shown that the Cardinals played more consistently. If Arizona assesses their season properly and plugs the right holes, they have many building blocks for future success. Why do teams play …