Kyle Shanahan is known for turning ordinary talent into offensive magic, but even the best have blind spots. As the 49ers enter a season packed with pressure, one flaw in Shanahan’s system could spell trouble. And it’s Brock Purdy who’ll be feeling it most. A recent report revealed that several defensive coaches pointed to that very weakness in Shanahan’s approach.

In a feature published by The Athletic , NFL writer Ted Nguyen spoke with six defensive coaches to find out which offensive play callers are the hardest to stop. Kyle Shanahan of the 49ers was ranked number one for his creative offense and deep understanding of defenses. But those same coaches pointed out a key weakness: pass protection .

Shanahan’s blocking schemes often struggle against surprise blitzes and overloaded

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