Was Oliver Colbentson ever the concertmaster of Metropolitan Opera Orchestra in New York City?

There is no record of Oliver Colbentson ever being the concertmaster of the Metropolitan Opera Orchestra in New York City. The current concertmaster of the orchestra is David Chan, who has held the position since 2018. Prior concertmasters include Raymond Gniewek (1980–2017), Paul Zukofsky (1969–1979), John Corigliano (1966–1969), and Mischa Mischakoff (1943–1965).