The familiar NBG logo is gone from the Gainesville bank’s brick exterior, but officials at the new State Bank and Trust Co. taking over operations inside are hoping all changes will be for the better — down to the new sign going up soon. State Bank “gives us much more horsepower in terms of what we’ve got now,” said Billy Glosson, State Bank market president, in an interview at the Jesse Jewell Parkway bank last week. The transition is ongoing from Athens-based The National Bank of Georgia to the Atlanta-based State Bank, a merger that took effect Dec. 31.