I see crew training, tactics, numbers, morale and technical factors as all having an impact on victory or defeat in a given engagement. This, of course, is nothing revolutionary. A deficiency in one can be compensated with superiority in another.
The German tank experience of the early war years shows how crew training, tactical systems and morale can make up for having at times "inferior" tanks and inferior numbers. I believe, however, that they worked fevourishly to make better tanks once they met the KV and T34, not content to rely on training and tactics.
M1s (a variety of variants) did fight T72s in the Gulf War, and the T72s were completely overmatched. We can dismiss the motivation and training of the Iraqis, but we shouldn't completly write off their soldier skills and export tank quality to make the combat record invalid.
I would argue that as long as the M1 was maintained properly, it could be deadly in the hands of "concripts".
I do not see the M1 as invulnerable, but it certainly has an enviable record in combat. Numbers are one thing, but battlefield results are another. The T72's combat record is not so hot, and even Russian armour in Grozny did not fare too well. I'd hate to take any T72/T80 series of tanks against M1s (especially today) even if I felt that I had an edge in crew training. I would have no confidence in my own gun's ability to take out my opponent while knowing that the he could certainly send my turret flying. Even concripts can have a good day. I'd like to hedge my bets with technical overmatch.
How is this different from what I was facing as a tanker on a Leo C2? I didn't like to default to the "we'll get M1s if we go to war" and tried to focus on training for war in a C2. If it came to a war I figured I would be facing T72s and T62s/55s. I knew that I most likely couldn't take a hit, but at least I had some confidence in my own gun's ability to kill those targets with the right ammo. Add to that crew training, tactics, supporting arms and the great TI on the C2 and I could at least contemplate facing those types of opponents. Contemplating facing M1s would have been a rather different matter. People may snicker at my thinking about such things but for a little while a couple of years back it looked somewhat possible. Our training in Nov/Dec 02 certainly had a air of reality about it.
Still, soldiers must always beware of the dangers of hubris, and I grant that thinking you are invulnerable or that the enemy will be a cakewalk is very dangerous indeed. Tankers should always study Crecy and Agincourt.
Cheers,
2B