In 1994, Jewett joined the Tacoma Community College coaching staff.
[1][2] In 1997, Jewett left to take the head coaching job at Edmonds Community College.
[5] On May 16, 2022, Jewett agreed to part ways with Tulane, and Jay Ulhman was named the interim head coach for the remainder of the 2022 season.
[6] Jewett compiled a 160–136–1 record over his 6 years as head coach of the Green Wave.
On July 7, 2022, Jewett was named the hitting coach and recruiting coordinator for the USC Trojans.