I couldn't get any responses in the Assistant Coach forum, so I'm sticking with the IDP forum.
I need to start 3:
James Farrior v. HOU
Lemar Marshall v. DAL
Courtney Watson v. NYG
Ian Gold v. SD
I also have Sam Cowart, but he's questionable this week.
1 pt / tackle
0.5 pts / assist
1.5 pts / FF or FR
3 pts / sack or INT
1 pt / PD
What do you guys think?
I like all four of those guys/matchups, but I think I'd sit Gold. My league's scoring for IDPs is almost identical to yours (we get 4 pts/sack or INT), and while the sample size (one week) makes the data pretty-much irrelevant, here's the LB points (for my league's scoring) surrendered last week:
DAL: 46.00
NYG: 34.50
HOU: 25.50
SD: 18.50
Best of luck.