Finance: money & banking: 'when the ox is in the ditch, you call Roger'

New Federal Home Loan Bank Board member Roger F. Martin is creating a stir in the savings & loan industry with his direct, gruff approach. A former troubleshooter for Milwaukee's Mortgage Guaranty Insurance Corp., Martin is charged with finding solutions for the 126 insolvent S&Ls in Texas and the troubled Financial Corp. of America (FCA). Martin is expected to announce a restructuring plan which will involve merges among many Southwestern savings and loans to reduce costs and overlap and attract new capital. Martin has negotiated with Ford Motor Company's First Nationwide Bank over an acquisition price for Financial Corp. for several months, and he is pushing for a $1.2 billion tax deduction for the holding company's purchaser.