Why can't we change QBs during a drive?

GBryne4Heisman

Redshirt
Jun 23, 2008
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Does anyone have a good answer to that question? That seems to be the way to go. Rather than seeing Relf run the ball 5 straight plays, then stall out - why can't we bring Lee in to finish off that drive or just bring Relf in for certain plays during a Lee drive?

Isn't that what the rest of college football does?