Prompt: Why did the Articles of Confederation prove inadequate for governing the new nation?

Consider: National unity under the confederation, The lack of an executive branch, Economic issues such as taxation and national debt, How the confederation dealt with other nations

First, the thirteen states did not have national unity, since they considered themselves separate, independent parties. Secondly, the Confederation lacked an executive branch or president, so legislators voted according to the interests of their own states. Thirdly, the Congress did not have the power to legislate taxes; as a result, it was difficult to collect money from taxes and pay debt. Finally, the Congress was restricted to administer trade within the different states, which limited international trade.

what are the questions?

btw i'm in apex to !