In Rallis' nickel-defense he deploys two wide 9-players. If three of them are Sweat, Browning and Ojulari, there is certainly room for one more, and Walker could fit that role. I am just not sure how succesful he will be. It would be unusual if a guy that short and with that short arms became a great pass rusher in the NFL, and I once heard Bill Walsh (I think it was him) saying that you should never draft outliers.I would not draft him at #16, because I see him as a 7-tec player. I would assume that we need a 5-tec Edge