Probably waiting for a big moneymaker and not willing to fight tough guys for half the money as the "elite" guys. He walked away from Peterson II and chose inactivity just because it wasn't big enough of a fight.
Bob is protecting him coz he knows that a PAC rematch is still on the table. Bob offered winnable, lesser purse and **** opponents (peterson and alvarado) for him to stay active but Bradley declined coz he wants the big names (rios, marquez, pac, cotto, mayweather or even canelo).