Well with our fast bowling stocks from this year
Lee - will be OD cricket only if he plays on, no harm having him around
Bracken - retired
Clark - best twenty20 bowler in the country at present but past it in first class cricket, probably retirement
Bollinger - will be kept, could be playing for Australia or for us, unsure at this point
Copeland - Gun first class player, keep him away from one day cricket he's terrible there
Hazlewood - injured, needs a good recovery
Starc - Ditto (and average from a first class point of view)
Cummins - potential but no need to rush him at this point
Cameron - Good but injury prone
Cockley - still struggling with injuries
Think that everyone.
From that list Cockley should definately move on with the three senior quicks unlikely to be around for first class cricket anyway, leaving 6 fast bowlers. I think we can keep them all, with Bollinger a chance for Australian representation, and the need to manage Starc Hazlewood and Cummins sensibly at such a young age.
With spinners, unsure what the international side will do but if Hauritz doesnt get the recall i'd be happy for him or O'Keefe to move on in order to gain important matchtime, especially if Smith is (as he should be) playing first class cricket. Hauritz seems to be the preferred option so I guess O'Keefe could move on (a few states would aim for him you'd thinks, the Vics and Redbacks most probably).
Batsmen could be an issue, depending on who is in the test side.