Where next for my team... Someone help!

[juzztheball]

DEF: Swallow, Hanley, Walker, Hurn, Enright, Langdon (McDonald, Langford)
MIDS: Ablett, Selwood, Liberatore, Stevie J, Beams, Watson, Cotchin, Dunstan (Hartung, Acres)
RUCKS: Sauce, Sandi (Derickx, Currie)
FWDS: Dangerfield, Martin, Pav, Buddy, Higgins, Ambrose (Taylor, Lloyd)

15 trades left and 1.2k in the bank.

Obviously not going for overall or i'd have 5 trades left and not 15.

More than happy to keep Higgins but i definitely need/want Zorko in this week, so happy to move Higgins on.

Jobe is the obvious one that needs to go. I know i need Pendles but im thinking Cotchin turns into Pendles when my teams complete.

My defence line is shaky at best. Some terrible decisions have hurt my DEF this year (starting Grimes over Swallow; picking Walker up instead of Simpson when they were a similar price...) So id love to move Langdon on for McVeigh but i think that could wait...

Someone help me  :o