Lions release pass rusher James Houston, who had 8 sacks as a rookie [Update: Browns claimed James Houston off waivers]

8 sacks, but not all sacks are made the same. Could have been a bunch of coverage sacks and/or sacks where he happened to have no resistance on blitzes, stunts, etc.

Detroit, as craziest is it sounds, is an organization that knows what it is doing, and they aren't in the business of letting good young pass rushers walk out the door just as their final playoff/home field advantage push begins.