[4] He returned to Montana State for a two-year stint as an assistant under new head coach Brad Huse, then went back to Northridge in 2008 for five seasons.
Sprinkle joined Dedrique Taylor's staff at Cal State Fullerton in 2013, and was part of the Titans' NCAA tournament squad in 2018.
[5] On April 4, 2019, Sprinkle was hired at his alma mater, succeeding Brian Fish and becoming the 23rd head coach of the men's program at Montana State.
The 2020–21 shortened season saw Sprinkle lead the Bobcats to knock off #1 seeded Southern Utah and advance to the Big Sky championship game, losing to Eastern Washington.
Sprinkle's final season in Bozeman saw him bringing Montana State to back-to-back NCAA tournaments for the first time in program history.