Considered the top defensive second baseman in the National League in 1939, Coscarart finished that season with a.277 batting average, 22 doublesand 10 stolen bases. He followed with an All-Star Game appearance the next year, while hitting 24 doubles with career-highs in home runs, runs batted in and games played. Coscarart also was a member of the Brooklyn team that faced the New York Yankees in the 1941 World Series, but as his hitting declined, he was replaced by Billy Herman and then traded to the Pittsburgh Pirates before the 1942 season. In his first year with Pittsburgh, Coscarart started at shortstop and switched to second base for the next three seasons. In 1944 he hit.264 with 30 doubles and 10 stolen bases in 139 games and also posted career-numbers in hits and doubles. He then was named to the National League All-Star team but did not appeared in the game. In a postwar era that foretold the sometimes rancorous relationship between major league players and owners, Coscarart was ahead of his time as he strongly supported efforts in 1946 to form a players union that could negotiate pension benefits. He voted, along with a minority of his Pirates teammates, to strike, but he found himself out of the major leagues, sold to the San Diego Padres of the Pacific Coast League. Although a pension plan was adopted in 1947, it was too late for Coscarart, who never gave up fighting for the benefits he believed he deserved.
Late years
Following his baseball career, Coscarart scouted for the Minnesota Twins and the Yankees. While at Minnesota, he signed Graig Nettles. He later worked in real estate for 30 years. In 1996, Coscarart was inducted into the Brooklyn Dodgers Hall of Fame. The same year, he joined Frank Crosetti, Dolph Camilli, Al Gionfriddo, and 72 other players from his era, in suing major league baseball for lost benefits and rights of players to receive royalties for use of their images and memorabilia without the players consent. "There's no way of proving it, but I've always felt I was cheated", Coscarart said in an interview with The San Diego Union-Tribune. A California Appeals Court ruled against the players in December 2001 as Coscarart was informed by CommissionerBud Selig that he was not entitled to $10,000 in annual pension benefits because of his suit against major league baseball. But many other pre-1947 major leaguers eventually received their benefits, in no small part thanks to Coscarart's efforts. After that, he received widespread media exposure in his appeals to Selig, but sympathy and support didn't translate into success. A few months later, Coscarart died in 2002 of an aneurysm in his home of Escondido, California at the age of 89.
