I'm pretty sure McDowell and the other professional military men thought so, but the politicians and newspaper men disagreed.
Here is what Winfield Scott allegedly had to say afterward: "Sir, I am the greatest coward in America.... I have fought this battle, sir, against my judgment. I think the president of the United States ought to remove me today for doing it. As God is my judge, after my superiors had determined to fight it, I did all in my power to fight it. I deserve removal because I did not stand up when my army was not in condition for fighting and resist it to the last."