i read bout 30 minutes on a case study which was out n Harvard Business newsletter:

the case went as such:
A newly recruited employee at Cliffbank; Mark ;a fresh MBA graduate joined the firm with great back-up from his friend Ian Breasely, a friend at a Retail Firm.
Mark had to impress his boss Bryan,at the management meeting along with the latter's team.
He prepared slides on strategy and age -old business methods as followed by the Retail Firm.
But he thought that his predecessor might have collected vital info regarding the Retail Firm's strategies and recent undertakings.He could not catch hold of the older documents and therefore sought help from Nicole,his team member,a smart lady who had offered to help him at times of need.
He approached her cooly and asked her to give her nod at his prepared slides and to help him in searching the old file which was but vital;
Nicole ,instantly nodded but took Mark into fits for her flippant attitude;for there she was in the meeting room on the d-day taking the managers into a gaggle for there were slides which showed the Retail's recent acquired entities;and their recent mergers all which Mark had hinted that should have been present in the "not -to-be-found" File.
Mark heard Bryan say Nicole "This was expected of you".
Later Bryan came to mark and asked him to have a personal meeting with Ian,coz the latter was supposed to be his friend;
Mark rang up Ian instantly and asks him as to" whether he could meet him over lunch for he and his group from Cliffbank wanted to negotiate The Retail's course of action".
Ian immediately responded in a friendly manner saying that a person by name Nicole, had suggested a meeting with him ;He asks Mark to arrange the meeting.
Meanwhile Mark confronts Nicole and schedules an appointment with Ian, to which Nicole shouts that he should not be present in the meeting for she was solely responsible for getting business from their Client;To this Mark Responds as"u should not take some credits alone" while the former says that "she had always wanted all the credits alone".

one of the analyst says that :"Mark should straight away discuss with Nicole if she feels that his appointment is posing a threat for her career and should convince her ; to be able to help each other mutually.

another analyst terms it a situation of sabotage by Nicole ,a saboteur and analyses that Mark should not argue with Nicole but should see himself from his Boss's 'Bryan point f view ;where Bryan is acquainted with Nicole,which means that Mark should contact Ian ,his friend and discuss internal affairs of the Client Firm and report to Bryan and thus stay in good book of his Boss;Plus by hook or by crook he should convince Ian,who is after all his friend that he is the chief contact person at Cliffbank.And should clearly state that no second person is to be contacted even if Nicole forces to be contacted.