Conversation so far:
what did Casey Stengel do in 1944?
Early in the 1944 season, the minor-league Milwaukee Brewers had a managing vacancy to fill
who filled the Milwaukee managing vacancy in 1944 ?
Casey Stengel
when did Casey Stengel return to the minors?
1944
was Casey Stengel a manager or player?
He was an American Major League Baseball right fielder, and manager.

Question: how was he as manager?
Self-contained rewrite: how was Casey Stengel as manager?