Not sure what Peterson you were watching. Because last season Peterson was a shut down corner. You must be thinking about the first 8 games of his rookie season because that's the only time he was burnt toast. Last season the Cardinals had the 2nd best pass defense in football and Peterson was the only pro bowler back there. To compare him to DeAngelo Hall is a huge insult and shows your lack of football knowledge. I can tell you only saw him play once or twice. I've seen every game of his career. The advanced metric stats and regular football stats show Peterson was a top corner. Fellow players on NFL top 100 voted him the best corner in football. I'm going to trust their opinions over yours.