Asante Samuel was a great corner. Then he had two bad seasons, but people still believed he was a great corner. He regained his form and has been great ever since, but there are a large number of people that never realized it.
Samuel was a top 3-5 corner in 2010 and 2011. We'll see what the numbers (not INTs; I'm talking about success rate, ypa against, etc) about his year in 2012.