Both teams on the board

Posted by ESPN.com's James Walker

TAMPA, Fla.-- The offenses are off to a decent first half in Super Bowl XLIII.

The Pittsburgh Steelers lead the Arizona Cardinals 10-7 as both teams scored on three of their first four possessions.

For Pittsburgh, a lot of credit should to go to Pittsburgh offensive coordinator Bruce Arians, who is keeping Arizona's defense off balance. The Steelers have run an array of screens that have given the Cardinals problems.

Arizona hasn't had as many opportunities, but on its second possession the Cardinals capped a drive with a 1-yard touchdown pass to tight end Ben Patrick. Pittsburgh is struggling to sack Arizona quarterback Kurt Warner, which is why the Cardinals are having some success.