I think the biggest problem with fielding Beast is the fact that our expectations are so high of him. Considering his resume as a LB for us, you figure you set him an assignment and forget about him and let him take care of business (unfortunately he hasn't been taking care of business). If we put a guy like Blackburn out there (who is an athletically limited player) or Klein (green and inexperienced) we know going into the play we have a slight liability (hell i'd rather run at beason, klein or blackburn rather than luke or td) and can gameplan to get help over there. Also I don't know if you noticed but TD was blitzing a really good amount last week with Chase in.
Our best bet is to try and trade him to a desperate team right NOW, even for a poor draft pick. I think Beason was a tad overrated in his prime. He was well above your average linebacker and was good in all facets of the game, but he lacked that true superstar spark - the ability to take over games. Seeing Luke now and last year completely changes your expectations on what a modern linebacker should look like on the field. When Luke shoots a gap and gets a clean shot on some sucker you feel the hit in your nuts. You can smell the poo that sucker just emptied into his pants. Beason would more or less drag guys down and make a solid tackle, while a guy like Luke picks people up, repackages them into some weird shape you'd see a contortionist perform and puts them on their back.