IDP Keeper Help

I need to decide on keeping two in a 16 team league between Burfict, Woodyard, Riley at LB and Burnett at safety.  League awards 1 point for tackle, 1 point for assist, 2 points for PD, 4 points for int/sack/FF/FR.  We start 2 LB's, 1 DE, 1 Safety, 1 CB and 1 flex.  I usually keep 2 LB's but due to Burnett being a top 3 safety for last couple of years thought I might switch it up.  Thoughts?

I'd go with Woodyard and Burnett. LBs are deep and it's hard to find reliable safeties in the draft.