I'm not as high on Timmons as most other IDP writers. It's not that I don't think he's not talented, quite the contrary. I just find his current situation less than optimal. He's an inside linebacker and isn't going to be able to generate as many sacks as Harrison or Woodley can from the outside. Plus, Farrior steals enough tackles away at SILB to decrease Timmons value in tackle-heavy leagues.
His value for me is higher in dynasty leagues since he may eventually move outside, but the Steelers selection of Jason Worlids signals to me he will stay inside. I just don't see anything higher than a LB2 value personally. I wouldn't be willing to spend 20% of my salary on the guy.