David not delivering

Hi,  I currently have Lavonte David for my DP in my PPR ESPN football league, but he is not really delivering. I am debating picking up either:

Josh Norman, Car
Malcolm Smith, Oak LB
Corey Graham, Buf CB
D'Qwell Jackson, Ind LB

Smith is least likely since he has the same bye as David (week 6).  Graham and Jackson are most consistent (i.e. Graham 11, 11, 12 points last 3 weeks and Jackson 8, 10 ,13.5).  I've looked at their schedules, etc, but having a hard time on who to pick up.

Thoughts?

If it wasn't the bye week, I would take smith

I like DQwell, LBs are generally more safe, David I wouldn't worry about too much, hes a beast!

Thanks! I tend to over think things, so appreciate the input!

we all do, I find over a season, playing the " match ups" hurts you in the long run, just stick with your good starters season long, less stress, regret and you'll be better off... trust me !