Man of La Mancha Barrington Stage Company Pittsfield, Mass. June 10-July 11, 2015 Review by Seth Rogovoy (PITTSFIELD, Mass., June 28, 2015) – While the record shows that when it made its premiere in 1965, “Man of La Mancha” was both a critical and commercial success — the original 1965 Broadway production ran for 2,328…