Step-by-step explanation:
The two most important changes that Americans agreed had to be made to the Articles of Confederation were strengthening the central government and giving Congress the power to tax. The Articles of Confederation created a very weak central government, and many Americans felt this wasn't working. The new Constitution would give the federal government more power and allow it to collect taxes, so it could pay off debts and fund the military. These changes were seen as essential for the new nation to survive and thrive.