What are the shortcomings of the three major transformations?

In response to your question, you need to confirm which field the "three major changes" refer to. If you mean the three major changes in China (namely, agriculture, industry and national defense), then the following are their shortcomings:

Insufficient agricultural transformation: Although agricultural transformation has achieved some success in solving the problem of food and clothing for China people, there are still many problems in general, such as low agricultural production capacity and the gap between farmers' income and urban residents.

Insufficient industrial transformation: Although industrial transformation has brought China a leap in national economy and science and technology, in the early stage of development, problems such as single industrial structure and low technical level are also prominent.

Insufficient national defense reform: In terms of national defense construction, there is still a big gap between China and developed countries such as the United States, the Soviet Union and Britain. Insufficient military funds, low level of weapons and equipment, and lack of military talents are all problems in national defense.

It should be pointed out that, although the three major changes have shortcomings, they are also important milestones in China's social development, which have had a far-reaching impact on China's development.