Why did the Articles of Confederation fail?

The Articles of Confederation failed because there was too much power left within the states.  The federal government had no power to collect taxes, to regulate trade, or to enforce laws. Also, there was no executive branch under the Articles of Confederation, and no national court system.  On top of that, all of the states had to give their consent in order for amendments to be passed. Nine out of the thirteen states had to give consent in order for laws to be passed as well.  This almost always never happened, because there were barely ever enough delegates to pass a law and small states could completely ignore what the larger states wanted.  The only power the federal government had was to make war and peace, send and receive ambassadors, enter into treaties, raise and supply a navy, maintain an army by asking for troops that were from the states, appoint senior military officers, regulate Indian affairs, establish post offices, and decide certain arguments among the states.