He definitely benefited from the system that Bielsa created, but he introduced essential players like Vargas, Aranguiz, and Marcelo Diaz and was really the one to turn them into serious contenders. They won the 2015 Copa America a full three years after Bielsa had left. Sampaoli deserves credit for that.
If anything, Pizzi lived off Sampaoli’s legacy and frankly only won 2016 Copa America because of Sampaoli’s team. Subsequently drove them into the ground.
Think this Argentina team is just a poisoned chalice.