Assuming I've landed B.Watson - KC D/ST or a RB next?

[Navyseal]

*Big $$$ 12 tm, H2H Hyper-performance/Milestone keeper league:
QB-RB-RB-WR-WR-WR-TE-K-D/ST + several other options/*-starters
*Eli Manning, McNabb
*AP,*T.Jones, M.Bush, J.Stewart
*Austin,*R.White,*Britt, Royal, Manningham, Edelman
*(Watson), O.Daniels(bye), Pettigrew(bye)
*Kaeding----out (J.Reed)
*NYG D/ST
(6-0, 3rd in points)

I have TWO more ww transactions for this week besides one used for getting CLEV TE Ben Watson, but then I need a pk (Kaeding is 'OUT') so I am targeting PITT pk Jeff Reed, with my 2nd ww transaction, leaving me with just one more --- SO--- with my final transaction, do I drop WR Edelman and grab KC D/ST for wk#7 and maybe beyond, OR do I attempt to deepen my RB corps since J.Forsett, W.McGahee, and New Orleans upstart C.Ivory are ALL available on my ww instead?

What to do, what to do...