Your offensive flow dindt help you.
Even if it seems he had a bad inside deffense your inside efficiency is really low. You have a great inside attack, but your performance because of your bad offensive flow is only working at a 50-60% and even if you did only 21 asist its more because you have great IS than a great passing.
On the other hand your opponent had a good offensive flow and even if their SF-PF arent that powerfull on IS compared to you, he did more or less the same %.
Another thing, never never never go 2-3 when you are using a PF as a SF, this normally doesnt work well, but sometimes it works with man to man.
Last but not least you have really good centers its a pitty you havent great outside players with great passing, if you buy a great PG or SG with passing around 10-11(i would say around 11-12) you will see how your team will improve in scoring more easy.