DB Option for week 10

Hi Guru-

Last week, I picked up Richard Marshall and he had a great game.  Do you think I should keep him this week or pickup one of the following off of waivers (T. Thomas, C. Greene, P. Chung, or B. Flowers)?  My league is very tackle heavy (see scoring system below).  Your thoughts???

Scoring system:

Tackle solo - 1pt
Tackle assist - 0.5pt
Sack - 2pt
Int. - 2pt
Forced fumbles & recoveries - 2pts
Def Td - 6pt

Thanks in advance,

T. Watts  

I'm in a similar situation this week as you since I picked up Marshall as well and have many of the same guys available on my waiver wire. I've decided to stick with Marshall even though the matchup isn't the greatest. He's been playing really well as of late and his strong tackling and ball skills are a powerful fantasy combination.