1 year League. Team in Sig.

We start 2C,2LW,2RW,3D,1UTIL

Im looking to improve my defense so i'm looking to take a downgraded winger from Kane and get a better d-man.

Should i trade my Kane and Dahlin for:

Giroux and Risto

OR

Benn and Risto

Who do you think will have a better season Giroux or Benn? I may be able to take the Benn one and not have to give up Dahlin. Which offer should i take? Or am i better off just holding.