From Jon's Media Day: The Big Theme post:
... By the way, donâ€™t get no huddle confused with automatically being uptempo. I would look for Iowa to change some speedsâ€¦fastballs and change ups. Using the no huddle limits what type of substitutions a defense can make and may force them to stay in base formations more often than they would like...
I can't tell you how many football games I go to where one team uses a no-huddle and the fans in the stands complain because ".. .. I thought they were running no huddle .. .. why is it taking so long to get the play off .. .. " and similar comments.
The bold above is one of the primary reasons to use the no-huddle. And if they try to substitute, you snap the ball early before the defense is set and either catch them off guard or they get caught with too many men on the field.
The point, however, is to wear down the defense to where you can push them around and move the ball. Is it effective early? Sometimes, but you really see the results late in the first half and in the second half.
Just my 2Â¢ .. ..