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On the defensive line, it seems like the locks are Hood, McClendon, Keisel, Heyward and Woods. I think that a strong argument can be made for Ta'amu, Fangupo and Arnfelt. I could see the Steelers keeping 7, especially with Keisel getting up in years and Hood in the last year of his deal. Should be good competition for the last spot, which is a nice problem to have.