This year's list of FN100 Rising Stars, our pick of the 100 top executives under 40 in European financial markets, has seen unprecedented churn as the financial crisis hones a new breed of nimble young executives. Here are the investment bankers.

Greg Best Managing director, cash trading desk, Morgan Stanley Age 34 Best was widely regarded as one of Lehman Brothers' top cash equities traders, and was part of the team that built Lehman into a top-five equity franchise from scratch when he started in 1999. He joined Morgan Stanley in July to look after the so-called super sectors, covering technology, media and telecoms, natural resources and utilities. Industry insiders have picked him out as a future head of cash equities trading, because his in-depth knowledge and client relationships give him an edge as an execution adviser.