Although there has already been much discussion in comments to other posts on the passing of Stan Musial and Earl Weaver, a separate thread for these all-time greats is more than appropriate.
Weaver’s teams were a cumulative 420 regular season games over .500 with him as manager. In the history of the American League, only Joe McCarthy was more games over .500 as a manager in the AL as well his for his career as a whole.
A Play Index search that I did produces just three guys: Stan Musial, Joe Carter and Felipe Alou. What did I search? Clue: it was a career, regular season search.
Here’s a pretty good all-time NL everday starting lineup by position:
1B: Musial (played more games there than any other individual position, if you count the three OF positions separately)