Trade Help!!

[lachie_001]

DEF: B. Goddard, D. Heppell, B. Gibbs, M. Hibberd, R. Henderson, J. Grimes (J. Pittard, M. Clisby)
MID: G. Ablett, S. Pendlebury, K. Jack, J. Selwood, R. O'Keefe, M. Barlow, R. Griffen, T. Mitchell (M. Murphy, N. Hrovat)
RUC: D. Cox, M. Kreuzer (M. Gawn, T. Nicholls)
FWD: D. Martin, N. Riewoldt, T. Rockliff, J. Bartel, J. Kennedy, S. Johnson (M. Robinson, B. Staker)

I have 2 trades and $93, 900 in the bank.

I have bolded the players I am considering giving the boot though I am specifically thinking of trading out the Grimes -> Mckenzie/ Hanley but Grimes is playing GWS and surely won't tag! and Nicholls -> Grundy?

But not to sure, I still want to get rid of Robinson and not 100% on Riewoldt playing. All opinions will be really appreciated!