your defense could be a bit better, particularly its your ath/spd/def in your players at the 1-3 who really determine how effective your press is. but i think that is good enough to do better than your team did. your rebounding is killing you, that rebounding margin is tough to overcome. with the traditional press team running 3 guards or a guardy sf (based on the 1-3 being so important defensively), its critical you focus on rebounding at the 4 and 5.
with the players you actually have, its your offense that should be improved. qunsenberry should have been scoring substantially more points. the same probably goes for ruley, albeit not to the same extent. quinsenberry (or whatever) should have been 5-10ppg higher. the poster who said with that spd/per in your flex system, from your top guards, you should be shooting more 3s, was absolutely right. i see it mostly as a problem in your top two guys, however.
i also agree slowdown doesnt make sense. i didnt check your game plans at all but if you ran slowdown, it should have only been against top 10 nationally type opponents. i absolutely disagree you should have run uptempo though. it makes no sense to me - only 10 men deep, running press, you dont have great stamina and you dont have a FT based offense. to me, uptempo is a terrible choice in the position you were in, and im not even the staunch uptempo hater i once was.