There are a couple different ways to look at the "open up the playbook" argument. One is mix in more of your package than you originally wanted to (or hoped you needed to); ie. mix in different play calls like boot passes, misdirection, reverses etc. that you had hoped to "save" or that you didn't feel comfortable with. The 2nd is to vary the balance you wanted, whether it be between run and pass, QB run game vs RB run game, etc.
It appears pretty clear to me just looking at the discrepency in basic play calls between the 1st half and the 2nd that we had hoped we could just throw out the 3 headed monster RB trio and mix in a little QB run and passing game. Our first half plays featured 17 runs by the RBs, 7 by Klein, and 15 passes. In the 2nd half that changed drastically, starting with the first drive. We had 11 runs by the RBs, 16 by Klein, and only 9 passes. So you go from 43.6% RB run game, 38.5% pass, and only 17.9% QB runs to nearly reversing those numbers in the in the 2nd half; 44.4% QB runs, 30.6% RB runs, and 25% pass.
The decision was made then not to add in more/different play calls. If anything Snyder went backwards; those numbers look a lot more like how he used Klein last year, especially in the Texas game. Part of that is good because EKU's defense did not do a great job accounting for the QB run game and it was largely successful. However, we still couldn't sustain drives (though the 2nd and 3rd drives of the 2nd half both ended in turnovers) so its hard to tell if it could've been more successful or not.
Ultimately its hard to say what this means completely, but clearly what we had planned/hoped to do going in against EKU failed miserable, and our game plan adjustment (more Klein runs) worked moderately well (it did lead to decent drives our last 3 possessions; missed FG, made FG, TD), though probably not as well as hoped (punt on the first 2nd half possession). It also shows that either we didn't want to show more of our offense (boot, misdirection, reverse, etc.) or that Snyder did not trust the offense/Klein running the rest of our offense. We probably won't find out which it was until Kent State partially, and fully until we head to Miami.
