Papa John's International (NASDAQ: PZZA) tried to place the blame for the pizzeria's terrible second-quarter earnings report on founder, ex-CEO, and former board Chairman John Schnatter, who resigned last month following publication of comments that were taken as racially insensitive.CEO Steve Ritchie said in a conference call with analysts that the pizzeria's woes go all the way back to last year, when Schnatter blamed the National Football League's handling of player protests for the pizza joint's lackluster sales.