It looks like the Bucs will be without Brian Kelly at least for the New Orleans game. Kelly pulled his groin muscle in the loss to the Seahawks and has been declared questionable for the game, but the Bucs aren't taking chances and signed Sammy Davis who was one of the last cuts in the preseason. The Bucs released Anthony Madison to make room for him.
Davis was a first round draft pick in 2003 by the Chargers, but never lived up to the hype. He played three seasons for the chargers, playing less games every season, and than was traded to the 49ers in 2006. The Niners let him go and the Bucs signed him in the off season. Davis actually played pretty well in the preseason for the Bucs and had a legitimate shot to make the team at the end of the preseason. The good thing for the Bucs is that he was with them during the preseason and knows the defense, which is hard to get acclimated to quickly.
Davis will most likely move in and have to be the Nickle corner for the Bucs. Ronde will shift to Brian Kelly's spot and Phillip Buchanon will take over for Ronde. This means that the fourth corner most likely would be Tanard Jackson who had started at safety in the first game of the season. Jackson play corner in college and got time there in the preseason as well. When he is playing the fourth corner Will Allen will have to come in and take over at FS.
The move to get Davis signals the fact that the Bucs are not confident that Kelly will be ready to go at least next week and maybe longer. Losing Kelly is going to hurt the Bucs badly on defense, especially with New Orleans coming in with their dynamic offense. The Bucs are without their best cover corner and are back to where they were last season.