The result was Butler having unobstructed space to break on the pass. Belichick basically saw they had multiple receivers on the field and put a defense out there that could stop the predictable run and disrupt the unpredictable pass if need be.
Carroll could have run it, but he felt that that was too predictable. Being predictable is only bad if it doesn’t work. Carroll’s mistake was that predictable would have worked for them.
See more: Meteoritee -Trending Shirt