NFL.com

A year ago at this time I gave you Anthony Hargrove from the Saints, who went from being institutionalized and out of football to a valuable contributor for the Saints. Casillas isn't overcoming that degree of adversity, but he could make for a heck of a story himself. He went undrafted in 2009 out of Wisconsin, but made his debut for the Saints last season and is having an excellent camp. He could be an impact player in Gregg Williams' aggressive scheme. Casillas has great speed and good instincts. There is some concern about how his body might hold up, but if he withstands the rigors and can use his acceleration to his advantage, he'll be just fine. Undersized linebackers have had success in this system before.