Representatives of the firm in the US have attempted to hold negotiations with people close to the department in recent days.
The US business could face ruin unless it can resolve its indictment for obstruction of justice and settle billions of dollars of potential liability with Enron shareholders and creditors.
According to reports, people involved in negotiations are hopeful that officials may at last be willing to talk.
Richard Cartwright becomes the new head, taking over from incumbent head of office David Lemon
Brian Burke, business development director, has moved within the firm to 'develop Quantuma’s networks with Sussex professional firms'
Stephen Mills joins the Manchester office from IBM, where he spent 12 years as an associate partner in the data, analytics and cognitive consulting group
Rupert Guppy will be responsible for capital allowances in the southern region, and joins the firm from specialist consultancy E3 Consulting