and if sometimes statements or checks were late in coming , or if they were n't always what the clients were expecting , or if there were unidentified direct debits from client accounts , well , grahame coats had a high staff turnover , particularly in the bookkeeping department , and there was nothing that could n't easily be blamed on the incompetence of a previous employee or , rarely , made right with a case of champagne and a large and apologetic check .