How had the civil rights movements arguments, tactics, and goals changed during the middle and late 1960s?

By 1965 the mainstream civil rights movement has accomplished some major policy achievements. It also endured increasing challenges such as urban unrest, the black power movement, Malcolm Xs critiques, and mainstream Americas reaction to urban violence and increasingly militant demands.  How had the civil rights movements arguments, tactics, and goals changed during the middle and late 1960s?