My guess is it's effort in practice related most likely. This seems especially likely with Slaton who was very bold in his predictions of breaking Alex Brown's sack record coming into the season but his playing time and placement on the depth chart has been dropping steadily since the season began and the intensity of expectations from the coaches and the team in general have been rapidly rising. If so I sure hope they soon eat some humble pie and start exhibiting some relentless effort because they both have serious upside especially Slaton who could be awesome if he figures it out!