I am not sure what your response means. Duke is certainly not a candidate to play slot as little or no short area quickness or ability to separate.
The pecking order won't likely change IF Beasley can't go. Diggs, Brown, Davis, McKenzie and Roberts would likely be ahead of Duke. Remember he was never made active even in Browns prolonged absence. So if Beasley is down, Brown Davis and Diggs are top 3.