Answer: They did no give the central government enough power to act
Step-by-step explanation:
The articles of confederation caused the federal government to grow weak , and thus building the power between states too high. How they solved this is introducing federalism where powers are split but not necessarily equal. Passing a law with these strong state governments impeding eachother would take a 9/13 vote, being almost impossible. I would also like to point out that the government of the time of the articles of confederation, there were no 2 branches, mostly just a weak legislative branch.
(Hope this helps, correct me if wrong)