Only Mr Fletcher and an exclusive group of executives close to Ken really know what is going on, critics say. Witness Ken's response to one member who expressed concern about his plan for an Olympics bid: "This," Ken said, "is no time for gloom and doom." But there is gloom in some quarters, especially over the main instrument of Ken's power, Transport for London. This is the body that will run the Tube, with responsibility for staff, stations, timetables, fares, and deals to capitalise on the £2 billion worth of development assets. The question is, how will Ken use the Tube's wealth? The question is an important one, because so far Ken has kept very quiet about his plans for the Underground, and his handling of money has made a lot of people nervous.