School counselors are called to be leaders to support the development of all students. The study in this article investigated the contributions of the values (Schwartz, 1992) and leadership practices (Posner & Kouzes, 1988) of 163 school counselors to their programmatic service delivery (Scarborough, 2005). Leadership practices made significant contributions (40% of variance) to the school counselors' service delivery, whereas values made small nonsignificant (less than 1% of variance) contributions. Implications for school counselors and counselor educators are discussed. (Contains 1 figure.)