Why did Armored Corps fail in Lebanon?

Despite Merkava tank's rank of safest tank in the world, massive damage caused by antitank missiles. Armored Corps claims soldiers were not trained enough, basic tank gear missing

Why did the safest tank in the world not withstand the second Lebanon war? Too many times during the recent war, the man in the tank was defeated. The Armored Corps is examining itself, and revealing that the failure derives from budgets cuts, but also from improper use of the tanks in enemy territory, as a result of inexperience of soldiers in the field.

Fifty Israel Defense Forces tanks were damaged during the 34 day war in Lebanon , 30 soldiers and officers from the corps were killed and more than 100 were injured, including two battalion commanders. These are the statistics from the recent conflict.
full story