Youth and Dynamism: Compared to other Politburo members, Gorbachev was relatively young and energetic, projecting an image of change and reform. His selection suggested a shift away from the older and more conservative leadership that had dominated the Soviet Union for decades.
Education and Technocratic Expertise: Gorbachev had a strong educational background, including a degree in law. He was known for his knowledge of economics and agriculture and was seen as capable of addressing the pressing economic and social issues facing the Soviet Union.
Commitment to Reform: Gorbachev had a reputation as a reformer, even within the confines of the Communist Party. He was associated with modernizing ideas and was seen as someone willing to challenge the status quo and introduce changes to address the USSR's problems.
Support from Andropov: Former Soviet leader Yuri Andropov is believed to have played a significant role in supporting Gorbachev's candidacy. As the head of the KGB and a close ally of Gorbachev, Andropov may have influenced the Politburo's decision to select Gorbachev as his successor.
It is important to note that while these factors contributed to Gorbachev's selection as Soviet leader, the decision-making process within the Politburo was opaque, and other considerations, including power dynamics, factionalism, and personal relationships, likely also played a role in his appointment.