# Colorado Buffaloes' Biggest Concern: Quarterback Struggles

> Colorado's quarterback issues threaten their Week 9 game after a blowout loss to Oklahoma State.
- Title: Colorado Buffaloes' Biggest Concern: Quarterback Struggles
- Summary: Colorado's quarterback issues threaten their Week 9 game after a blowout loss to Oklahoma State. Colorado's quarterback instability and defensive weaknesses…
- Keywords: colorado buffaloes, oklahoma state cowboys, israel wilson, brennan marion, colorado defense, big 12, college football, sports, Colorado, Buffaloes', Biggest, Concern
- Source: Colorado Buffaloes On SI — https://si.com/college/colorado/football/colorado-buffaloes-biggest-concerns-oklahoma-state-cowboys-real-overreaction
- Published: 2026-10-27T13:00:11+00:00
- Read time: 1 min
- Topics: colorado buffaloes, oklahoma state cowboys, israel wilson, brennan marion, colorado defense, big 12, college football, sports
## Colorado Buffaloes' Week 8 loss
The Colorado Buffaloes lost to Oklahoma State Cowboys in a blowout game after allowing 34 unanswered points in the second half.
## Quarterback position concerns
Isaac Wilson threw for 222 yards and two touchdowns in the first half but had two interceptions and 58 yards in the second half.
## Quarterback performance
Wilson's second-half performance included two interceptions, 5-of-15 passing, 58 yards, no touchdowns, and two fumbles.
## Quarterback concerns
Colorado faces more quarterback questions for the fifth week in a row.
## Cornerbacks liability
Colorado's cornerbacks are a liability on its defense with two voids at the other cornerback spots.
## Defense weaknesses
The Cowboys exposed Colorado's cornerbacks as its weak point despite a star-studded defense otherwise.
## Offensive playcalling
Offensive coordinator Brennan Marion mismanaged personnel with Wilson throwing the ball 27 times and running 15 times.
## Running back issues
JaQuail Smith had 13 carries for only three yards per carry with no other running backs seeing touches.
## Defensive coordinator
Defensive coordinator Chris Marve's defense allowed 2,194 passing yards in 2023.
## Defensive coordinator's reputation
Marve's defense has been among the best in the Big 12 despite late-game struggles.
## What's next
Marve is expected to fix the secondary and improve the defense for the rest of the season.
## Key takeaway

Colorado's quarterback instability and defensive weaknesses could lead to more losses this season.