I want to know the answer to the following question:
What action brought prosperity to Arsenal?
All the background I'm provided with is that "With new signings like Malcolm Macdonald and Pat Jennings, and a crop of talent in the side such as Liam Brady and Frank Stapleton, the club enjoyed their best form since the 1971 double, reaching a trio of FA Cup finals (1978, 1979 and 1980), and losing the 1980 European Cup Winners' Cup Final on penalties.". Is that enough to answer the question?
Answer: yes