Mortgage brokers and correspondent lenders continued to provide much of the subprime market’s muscle in the early part of 2005. But a new Inside B&C Lending analysis reveals that retailers gained significant ground. Clearly, wholesalers dominated the market during the first three months of the year, when they accounted for 63.7 percent of the estimated $135.6 billion in new subprime mortgages originated during the period. While solid, however, those numbers mark a steep falloff…