A Goldman Sachs Group Inc. lawyer told a federal jury the founders of speech-recognition pioneer Dragon Systems Inc. are scapegoating the investment bank for their own mistakes in a $580 million all-stock sale rendered worthless when the buyer was exposed as a fraud, Bloomberg News reported today. In closing arguments yesterday in Boston federal court in a lawsuit accusing Goldman Sachs of negligence, the attorney said Dragon co-founder Janet Baker and Chief Financial Officer Ellen Chamberlain ignored the bank’s advice to hire accountants to further vet Belgium-based suitor Lernout & Hauspie Speech Products NV and rushed the deal amid Dragon’s cash-flow problems in 2000. Donovan blamed Baker, also Dragon’s former chief executive officer, for negotiating a change from a half-cash/half-stock deal to an all-stock deal without consulting the banking team. Lawyers for Dragon argued New York-based Goldman Sachs committed gross negligence, committed misrepresentation through key omissions and should have stopped the deal because of unanswered questions about Lernout & Hauspie’s revenue.