If you can't adjust vs odd or even fronts, then what the fuck are you really doing? Every run/pass scheme has rules. Those rules apply regardless of the front. The center IDs the point typically vs 4 down, and in my experience, a box or odd call is also there to alert the rest of the OL the front. You can still call a point in an odd front, but typically you'd then have to push the count if they're using a count method, which I doubt they do.
But anyways, ever scheme you run has rules that apply to both, and if you're players don't know those rules, you're screwed when they switch up between the two. I just don't understand that mindset of, well they came out in something else. Who gives a shit. power is still power whether it's odd or even. The entry point by the back will vary, but the OL that doesn't mean two shits. Zone is still zone. I'm assuming they've got covered/uncovered rules, it shouldn't matter. If it does, that quite frankly is a fucking embarrassment.