In all Military Conflict, there is always a lack of something or other.
It reminds of pictures of World War Two AFV's, Both Allied and Axis Tankers improvised with what little they had. When the Germans realized there Panzer IV and Sturmgeschutz were being penetrated very easily, they developed a new model/s with skirts. When the armored skirt was compromised, It was welded with whatever the tankers could find.
In the Bocage, Allied Shermans couldn't break through the Hedgerows, So they welded scrap metal to build a plow like device to break through them.
Like I said, Both sides were forced to improvise, Tank Treads from destroyed tanks were strapped to vulnerable areas of Tanks. To add a little extra armor.
Its how Military Technology progresses, I'm sure the problem will be alievated (sp), wether it be through Yankee Inginiuity or newer models of AFV's.
I saw the clip of Rummy talking to the troops, If you happen to see the clip of the soldier asking why they had to rummage through scrap, look at all his buddies sitting beside him, they look astonished as to why he asked it. The worst part about of it is the run around answer Rummy gave.