LBJ was going to implement a surge in Vietnam, but then gave into political pressure and caved, sending in far fewer men than those in field command thought necessary.
In contrast, President Bush committed to a surge and his successor, President Obama, is the one who decided to send far fewer than those in field command thought necessary - and he was able to do this easily because the press ran interference for him.
I hear you, and you do make a good point.
But why was an Afghan surge even necessary in 2008? The war should have been over long before then. That's on Bush.