However, he says he and technical director Johan Lange are in a good poisition to make calls on players.
The Australian said: "It's an ongoing process. It was similar last year when I took over.
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"It is just part of the process of planning and the difference from last year is we are well into that planning. Where as last year we had to do it on the run because I came in post-season and we had a big squad then.
"We had a lot of decisions to make about players who were coming back from loans, players who could go out on loans, players we had to bring in or move out. This year we are a lot more calm in our approach because we've been working on it a while with Johan and the people in the football department."