You probably should've won that game, but your passing isn't the best I assume. You had more TO than assists, probably because the 1-3-1 zone didn't let your players pass the ball. If the ball went more times and with more quality to your inside players, you would've won, no doubt.
He had less inside offence than you, but his higher offensive flow, managed to give him the 8 point lead. It's just a matter of having more passing on your guards, and I think you will be able to play both outside and inside offences.
The other game, is complicated, the SG and the PF did an awesome percentage, but the other 3 players played poorly. I would guess that the reason that he lost was the lack of outside defence (he got absolutely destroyed) and the horrible performance of his, out of shape, center.