Lambert began his coaching career at
Lebanon High School from 1912 to 1916, amassing a record of 69–18 (.793) a Sectional title and 3 other post-season appearances; including a berth in the State Semi-Finals in 1913–14. Lambert coached
Purdue University (1916–17, 1918–1946) to a 371–152 record in 29 seasons, including 11
Big Ten Conference titles. His teams were noted for their speed and effective use of fast breaks, which he developed. Among his players were
Stretch Murphy and
John Wooden. Lambert missed the 1917–18 season to serve in the
United States Army during
World War I. Meanwhile,
J. J. Maloney, an attorney from
Crawfordsville, Indiana, filled in and guided the Boilermakers to an 11–5 record. Lambert's
1931–32 team finished the season with a 17–1 record, was retroactively named the national champion by the
Helms Athletic Foundation, and was retroactively listed as the top-ranked team of the season by the
Premo-Porretta Power Poll. He coached 16
All-Americans and 31 first team All-Big Ten selections.
Lambert Fieldhouse (originally known as Purdue Fieldhouse), the facility used for home basketball games prior to the construction of
Mackey Arena, was renamed in his honor. Lambert is now third on Purdue's all-time wins list behind
Gene Keady and current head coach
Matt Painter. Lambert also coached
Purdue's baseball team in 1917, from 1919 to 1935, and from 1945 to 1946.
Lambert Field, Purdue's former baseball stadium, is also named for Lambert. He was listed as a
scout for the
New York Yankees of
Major League Baseball in 1948. ==Administrative career, writing, and honors==