And he tried unsuccessfully to enact a public option, but was stymied by Congress; the national security front is so diverse that it's hard to say succinctly, but the most controversial aspect of Obama's anti-terror policy (using the drone war to replace American frontline combatants) was something he explicitly ran on at the time; and he did enact reforms targeting Wall Street, though not as much as many wanted.
Obama did not run on a promise to enact a Sanders-style overhaul of America's economic system.