Conversation so far:
Why did Willie McCovey return to San Francisco?
McCovey returned to the Giants in 1977 without a guaranteed contract, but he earned a position on the team.
Can you tell me about Willie McCovey and the return to San Francisco?
McCovey began 1977 as the active home run leader with 465.

Question: Was he successful as being the active home run leader?
Self-contained rewrite: Was Willie McCovey successful as being the active home run leader?