PrimeLending is churning through loan originators, recruiting strong candidates and letting go of “non-performers” as lenders battle for purchase mortgages. In recent months, the retail lender owned by PlainsCapital Bank hired about 250 LOs and released about 200 others, according to Alan White, chairman of PlainsCapital Bank and co-CEO and vice chairman of Hilltop Holdings, which owns the bank. “We’ve been able to upgrade our staff,” he said during Hilltop’s earnings call ...