Ahead of this week's game against the Ravens, Pittsburgh signed a former member of their team, cornerback Corey Ivy. "With every team, you?re going to see a foundation under the offense," wide receiver Mark Clayton said. "From that, you have your variations, and we certainly have our variations that don?t allow you to really just key in on our stuff. So I can?t say that it?ll help much." Similarly, cornerback Frank Walker said that Ivy might not have much information regarding the Ravens defense, which has changed since last season. "Everything changes from year to year," Walker said. "We?ve got a completely different defensive coordinator from last year. So you can say what you want, but the reality is that it may be the same concept with different people, but you never know. ? To a certain extent, he?s going to tell them what he knows or what he thinks he knows ? which any player would do."