Having moved to the brokerage from Citadel last month , Joseph Dickerson is sinking his teeth into UK banks with a giant ' buy ' on Lloyds and a ' sell ' on RBS , in a 64-page punch of a Woody Allen-quoting research note on the British banking sector ( The fact that Execution 's London offices are located at the Truman Brewery , amidst the hipsters of East London , no doubt helps in the creative process ) .