To be expected (the offensive struggles at this point) when installing a new offense and working out the kinks. Obviously not on remotely the same scale, but we installed a new offense my senior year for a summer basketball camp right before it started. I think we scored like 12 points or something ridiculous like that in the first game we played (20 minute running clock for each half, so quick games but that was still awful) and got killed. We played the same team 2 days later and beat them while scoring over 40 because we were all more comfortable with what we were doing after repetition at full speed. It's going to take some time for everyone to be in rhythm.