Three programs in three seasons for a player rated the No. 8 prospect in the 2023 class is not the career arc anyone drew up on signing day. But the play-by-play data on Jackson Arnold tells a more interesting story than the box score: the legs are genuinely elite, and the arm just hasn't come along for the ride yet. Dan Mullen and UNLV are the next chapter.
Arnold's Auburn tape in 2025 is a study in contradictions. His 94th-percentile interception rate says he's disciplined — only nine QBs in the country were more careful with the football on a per-attempt basis. His 89th-percentile EPA per carry says he punishes defenses with his legs, finishing runs (81st-percentile rushing TD rate) and occasionally breaking one (75th-percentile explosive run rate). Those are legitimately NFL-caliber rushing numbers for a quarterback.
The passing game is a different reel. A 16th-percentile EPA per dropback, an 11th-percentile explosive pass rate, and a 2nd-percentile sack rate — meaning he was getting sacked on over 12% of dropbacks, dead last in the country — paint a picture of a passer who hasn't found comfort in a pro-style pocket. The Auburn offensive system wasn't kind to him, but the numbers were hard enough that he lost the starting job.
Now he lands at UNLV under Dan Mullen, who has one of the better track records in the sport of building mobile quarterbacks into complete starters. If Mullen can simplify Arnold's reads, widen the run-pass option menu, and rebuild his pocket confidence in a lighter Mountain West schedule, 2026 could be the season Arnold finally matches his recruiting pedigree. The talent is there. The question is whether the right system has finally found him.
How he plays
Arnold is a runner who happens to also throw. His 89th-percentile EPA per carry and 81st-percentile rushing TD rate are not flukes — he picks his lanes quickly and he finishes. The 94th-percentile interception rate signals real processing; he knows when to pull it down. What he hasn't solved is the drop-back game: his explosive pass rate sits at the 11th percentile, his EPA per dropback at the 16th, and his sack rate was the second worst in the country (2nd percentile) — nearly one in eight dropbacks ended with him on the ground. The profile is less dual-threat QB than it is a running back with a live arm waiting for a system that believes in him.
