Harland Svare, who played linebacker within the celebrated defense that served go ahead and take Giants to three N.F.L. championship game titles in the nineteen fifties and have become, at time, the youngest head coach inside the N.F.L.’s modern-day record when the Los Angeles Rams employed him in 1962, died on April 4 in a nursing property in Steamboat Springs, Colo. He was 89.