Woodhead, bench or drop advice?

I have Freeman, Hunt, Martin, Woodhead & Mixon. With the news that Woodhead is out 4-6 weeks do I keep him on the bench or drop him? I’m dropping a LB this week and picking up Cohen (I have #1 waiver so I know I will get him). Is Woodhead’s value worth the bench spot for 4-6 weeks? I have an IR spot but unfortunately Luck is in it right now. Should Luck come back in 3 weeks I could move Woodhead to IR at that time. Any opinions? Thanks!

Any advice?