Christiansen told BBC Radio Leeds: "I'm the guy who really wants to be here and has clear ideas of what I want to do to succeed and I am ambitious to bring Leeds back to where they belong". I'm very excited and believe we can do good things here.
This means that his replacement Thomas Christiansen is under a lot of pressure as he will have to better the record Monk had past year.
"But having my ideas - I will die with my ideas, my philosophy".
Derbyshire, who left Forest in 2014 before moving to Rotherham is wanted by new Leeds United boss Thomas Christiansen.
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"Last year, they finished seventh and at least promotion should be there (an ambition) and we are hoping to do better". "I believe with good work we can achieve that".
Derbyshire has spent most of his career in English football, however he spent last season at APOEL's fierce rivals AC Omonia Nicosia where he was the leading scorer in the Cypriot First Division, scoring 24 goals in 33 league appearances for the club.
Orta, appointed to his role at Elland Road last month, stressed Christiansen would be consulted closely and would have the last word on any new players to arrive at the club.
Christiansen is keen to keep hold of 30-goal striker Chris Wood - "who wouldn't be?" he said - but claimed he had no transfer targets at this stage, with the players scheduled to return for medical tests on Friday.
Christiansen may be targeting promotion in his first season in England, something rarely achieved by foreign managers during their debut campaign in England's second tier and he will have real battle for Championship promotion slot without New Zealand global Wood.
"But right now there is no player from my previous teams we have in mind", he added.