With the start of free agency just more than a week away, the New Orleans Saints soon will get the chance to begin shopping to upgrade their roster. But first General Manager Mickey Loomis has to work his magic and free up enough room under the cap. If Loomis can, should the Saints consider signing wide receiver Mike Wallace or cornerback Keenan Lewis, a pair of Pittsburgh Steelers who are both New Orleans natives who starred at O.P. Walker? Wallace, who in four seasons has 4,042 receiving yards and 32 touchdowns, is one of the NFL's best deep threats and has proven to be extremely productive. He'd easily team with Drew Brees to stretch the defense and provide big plays. But his price tag may be a bit too high for the Saints. As for 26-year-old Lewis, he is coming off the best season of his career and likely played his way into a nice contract. Lewis, who had 23 pass breakups last season, was the Steelers' best cover corner last season and could serve as an upgrade in the Saints' secondary.