Twitchy, undersized 3-technique with legitimate lateral agility — his best-in-class 20-yard shuttle at the combine confirmed what the tape flashes. Marshall wins early or not at all: he needs to fire off the snap and use his quickness to shoot gaps, because he doesn't have the mass or leverage to hold ground when guards get their hands on him. The 2024 tape showed a disruptive interior presence generating penetration in the Big 12, but his 2025 regression — partly injury-driven — raised real questions about consistency and effort level. His ceiling is a rotational pass-rush interior piece in a one-gap scheme; his floor is a UDFA who washes out because he can't stop the run at the NFL level.
- Elite short-area quickness for an interior defender — best 20-yard shuttle (4.68) among all DL at the 2026 combine
- Twitchy first step that allows him to shoot gaps and create early disruption as a one-gap penetrator
- Demonstrated ability to generate pressure from the interior — 78.4 PFF grade in 2024 with legitimate pass rush flashes
- Smooth and fluid mover in combine drills, showing natural athleticism in pass rush, agility, and run-and-club work
- Cannot hold his ground or leverage gaps — gets washed out by NFL-caliber guards with any degree of power
- Run defense is a significant liability; regressed noticeably from 2024 to 2025 and Zierlein flagged it as a primary concern
- Production was modest even in the Big 12 — only 30 tackles and 2 sacks in 2025 despite starting all 12 games
- Injury history is concerning — missed the entire 2021 and 2023 seasons, was hampered by a high-ankle sprain in 2025
Similar profile as an undersized, twitchy interior DL who wins with quickness and lateral agility but lacks the anchor and play strength to be a consistent run defender. Gallimore carved out a rotational role with the Cowboys; that's Marshall's best-case outcome.