Frank Lampard will be confirmed as the new Chelsea manager by Thursday, Sky Sports News understands.
It is believed the 41-year-old has been seeking assurances about owner Roman Abramovich's expectations and the club's plans once FIFA's transfer embargo expires.
Sky Sports have been told the interview process included an open exchange of views, with both sides wanting to be certain the relationship would work for them.
Chelsea director Marina Granovskaia asked Lampard about his lack of experience as a manager, his vision for the club, and whether he would look to give opportunities to Chelsea's younger players.
Similarly, Lampard asked searching questions about Chelsea's expectations, what constitutes success, and their transfer plans once the club is free to trade again.
However, Chelsea's all-time leading scorer also told Abramovich he doesn't expect any special treatment, and that he wants to be judged as any other coach would be - by results on the pitch.
Sky Sports have also been told Lampard didn't ask for guarantees to be given time to make an impact - even though when he signs the contract, Lampard will be Chelsea's fourth manager in less than four years.
Negotiations over the financial terms and duration of Lampard's contract were relatively easy to agree, Sky have also been told.
Negotiations with his representatives are ongoing with the Dutchman a free agent after leaving Turkey, but is wanting more detail on Derby's plans for the squad before committing to the job.
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