David Brandi: Drive Your Business Success with ValueAdded Account Management According to Brandi & Co's David Brandi, good relationships are the backbone of a successful business. On the other hand, maintaining and cultivating connections is easier said than done, especially in the business world, where customer competition is tough and loyalty is hard to come by. So, how do you plan to compete? On the other hand, account management is regarded as critical by David Brandi.