Kellogg began his coaching career at
George Mason University where he was an assistant for two seasons (1997–99). He then moved to
Youngstown State for the 1999–2000 season. From 2000 to 2008, Kellogg was assistant coach of the men's basketball team at the
University of Memphis, under
John Calipari.
UMass In Kellogg's first year as head coach, the UMass Minutemen finished with a 12–18 record. Though disappointing, the season featured wins over three teams that would reach the
NCAA tournament:
Kansas,
Dayton and
Temple. UMass also nearly upset
Xavier, who also made the NCAA Tournament. The 2009–10 season for UMass finished with a 12–20 record. Kellogg's squad, with many first-year players for UMass, had notable wins against
Memphis and
Rhode Island in the regular season's finale, which arguably knocked the Rams off the
NCAA tournament bubble. The Minutemen also broke an eight-game losing streak in the Atlantic 10 Tournament, with a first round win over
Charlotte. Six of the Minutemen's opponents would go on to the NCAA Tournament, though UMass went 0–7 in games against those teams. In the 2010–2011 season Kellogg's Minutemen improved to a 15–15 record with a 7–9 regular season conference record in the Atlantic 10. The team started the season 7–0, but faltered down the stretch ending the season 2–8 in their last 10 games. They did have notable wins in the regular season over
RPI top 100 teams
Rhode Island twice and
Dayton. They earned a home Atlantic 10 tournament game at the
Mullins Center for the first time since 2003, but this time lost 78–50 to Dayton. After this loss and a previous loss to
Fordham, there was talk that Kellogg should be fired after three seasons. However, on March 9, 2011, UMass athletic director John McCutcheon announced that Kellogg would be back for the 2011–2012 season. In the 2011–12 season, Kellogg's Minutemen won 20 regular season games, then two more by reaching the semifinals of the
Atlantic 10 tournament. They defeated the #1-seed
Temple in the quarterfinals, but lost to the eventual tournament champion
St. Bonaventure. The Minutemen went 15–1 in home games, with the only loss to
La Salle by a 72–71 score. The team was selected to participate in the
NIT, the school's first postseason appearance since reaching the
2008 NIT Final. With victories at
Mississippi State,
Seton Hall and
Drexel, Kellogg's squad became only the fourth team in NIT history to reach the semifinals by winning three straight road games. By defeating Drexel he notched a win against head coach
Bruiser Flint, who as a UMass assistant recruited Kellogg to play for the Minutemen. The Minutemen then lost to Stanford in the NIT Semi-Finals, finishing the season at 25–12. Under Kellogg, the 2012–13 Minutemen once again enjoyed a 20 win season and for the second straight season reached the semifinals of the
Atlantic 10 tournament. They would reach the semifinals by avenging regular season losses to
George Washington and
Temple before losing to
VCU. For the second straight year the Minutemen were invited to play in the
NIT. Although seeded second in their region, they would be upset at home by
Stony Brook in the first round, finishing the season with a 21–12 record. The 2013–14 season saw the Minutemen return to the NCAA tournament. The team rushed out to a 16–1 start and a national ranking as high as #12 before fading in the second half of the season and splitting its final 16 games to finish 24–9. Despite the impressive non-conference showing, the Minutemen once again failed to crack the top four of the A10 conference and finished tied for 5th. Receiving a #6 seed in the NCAA tournament, the Minutemen were soundly defeated by 19 points in the second round by the #11 seed Tennessee Volunteers. The two seasons following the NCAA bid were disappointing for UMass as the team finished with 17–15 and 14–18 records, respectively. The 2014–15 squad dropped six of their final seven games and missed out on the postseason. The 2015–2016 season featured a seven-game losing streak marked by double digit losses and second half collapses. Overall attendance at Mullins dropped to less than 50% capacity for the season. Despite a talented top 25 recruiting class and key returning players, Kellogg's program struggled again in 2016–17. After starting with a 10–3 non-conference record against a relatively weak schedule, the Minutemen stumbled to a 15–18 finish, including a 4–14 conference record and a 12th-place finish in conference play. Over his 9 years as head coach at UMass, Coach Kellogg's A10 conference record was 67–83 with his best season a T-5th finish. Kellogg was fired by UMass on March 9, 2017. In his first season, he led the Blackbirds to a victory in the NEC Tournament finals, sealing a trip to the NCAA First Four of the NCAA Tournament.
LIU Kellogg was named head coach of the unified LIU men's basketball team in 2019. On February 8, 2020, Kellogg picked up his 200th coaching win.
Return to UMass On August 17, 2022, UMass Men’s Basketball announced Kellogg’s return to Amherst to serve as an assistant coach under
Frank Martin.
Creighton On April 27, 2023, Creighton men’s Basketball announced Kellogg had been named as an assistant coach under head coach
Greg McDermott. ==Head coaching record==