Weird, indeed, considering that Moore is now in his first season as not the Broncos' wide receivers coach, but the Bulldogs'.
After spending two seasons as a graduate assistant at Washington under former Boise State coach Chris Petersen, Moore was given his first full-time FBS assistant job last December.
Fresno State coach Jeff Tedford was an offensive consultant last season for the Huskies, and he brought Moore with him. The two worked together a bit in Seattle but not necessarily on a daily basis.
Moore knew he would be coaching against his alma mater.
Coaching runs in Moore's blood — his father, Tom, won four state titles as head coach at Prosser (Wash.) High. And of course, there's his famously wise brother, Kellen, who was 50-3 as Boise State's quarterback and is currently on the Dallas Cowboys practice squad.
In his Boise State career, Kirby had 115 catches for 1,137 yards with six touchdowns in 2009 and 2011-13.
Moore's first coaching job was with the receivers at College of Idaho in 2014. He had been working in medical sales when his former roommate, Dustin Kamper, was set to join the Yotes' staff as linebackers coach and said there was a vacancy at Moore's old playing position. Moore jumped at the chance to coach the Caldwell school's first team since 1977.
"There was some trial and error, but to get that experience, having your group of guys, seeing how it all works, that was really huge," Moore said.
Fresno State junior wide receiver KeeSean Johnson said when Moore was hired, redshirt senior Da'Mari Scott made sure to note he played against Moore in that 2013 game. Moore's youth, Johnson said, has helped him relate well to his players.
Johnson (58) and Scott (48) are tied for third and eighth, respectively, in the Mountain West in receptions. No. 3 receiver Jamire Jordan is averaging 24.9 yards on 15 catches.
"Kirby's done a great job. Those guys are playing well," Boise State defensive coordinator Andy Avalos said.
Moore is glad to be part of that coaching tree.
Fresno State's turnaround has been one of the best in college football, from 1-11 last season to the West Division champion. The Bulldogs are tied for 10th nationally (along with Boise State), having allowed only 10 turnovers. It's a balanced offense with three running backs with 444 to 542 yards and two receivers with 48 and 58 receptions. The Bulldogs are averaging a modest 27.7 points per game but have allowed only seven sacks.
The Bulldogs' defense has been excellent, leading the conference and ranking No. 12 in the FBS with 17.3 ppg and 307.5 yards per game allowed. The 4-3 base doesn't have one huge playmaker but a lot of solid parts, with seven players having at least two sacks but none with more than five. The Bulldogs are No. 16 in rush defense (118.2 ypg) and No. 22 in pass defense (189.3 ypg). Their 11 fumble recoveries are tied for 10th-most in the FBS.
Marcus McMaryion, QB: A 6-foot-2, 195-pound junior, he transferred to Fresno State from Oregon State in August, then took over the starting job in late September. He's 8-1 at the helm and is 146-of-233 passing for 1,880 yards with 12 TDs and three interceptions. He also has 192 rushing yards.
"He can scramble when the defense gives him the opportunity, and he has good touch on the ball as well," Boise State linebacker Gabe Perez said.