On a Saturday night in Austin, the Texas Longhorns prepare to face the nation's top-ranked team carrying the quiet weight of an injured roster — a reminder that in sport, as in life, the gap between ambition and circumstance is often measured in the bodies available to close it. Coach Steve Sarkisian must summon depth and adaptability where depth is thin, asking reserves and backups to rise to a moment that would challenge even a full complement of starters. The outcome may hinge less on strategy than on resilience — the oldest and most human of athletic virtues.