Jamie Oliver is not the first or the last business man to make a bad investment, or have to close down businesses. Over the last 5 years there's bigger ones gone down the pan, and yes he opened to many and it seems he was to expensive, he like many other top chefs over the years think their brand name will sell anything, at any price, ( I think twice about paying £4.50 for fish & chips) I wouldn't even think of entering any top chefs restaurant to be ripped off.
No one man can keep control over such a large business so we don't really know what so called financial advisers JO had or advised him to do from the start. If you take Noel Edmonds for an example, his financial adviser near on destroyed him. There's one or two from the dragons den that have lost a fortune, learnt from their mistakes, to go on and make millions more, and I'm pretty sure JO will as he says he's learnt a lot from this experience, and he must have something up top, due to the fact he's not gone bankrupt, or lost any other investments.
What really hacks me off is it seems a British pass time to take the first opportunity to drag a successful talented individual down. Is this just being jealous / envious, of someone who as done well in life. While I'm typing this, and ABers answering, you've got to ask ones self who's making all the money, me, you, or Jamie Oliver. :)