I mean, there is more to it than being creative. That HB Dive is supposed to go for 4 yards. Now, you are comfortable w a run or pass. If that hb dive goes for 1, you are in a passing down and B.B. is getting hammered w a blitz. So much of the offense is built on the little things being successful, especially “winning on first down”.
To answer the original query, no, we shouldn’t open up the playbook vs umass.