10 years agoMahlmann's Chicago return in jeapordyA plan by Karsten "Cash" Mahlmann, the Chicago Board of Trade (CBoT) chaiman who resigned in disgrace in 1990, to return to LaSalle Street at the head of Quantum Financial Inc, a futures trading firm, has hit a stretch of bumpy road.CBoT insiders report that a loosely knit yet vocal minority on the exchange's membership committee and on the governing board are threatening to derail a plan by...