Your SG Bruno Zurlo kinda lost it for you. 7 TO is not very good, and 2/12 missed shots (especially all of those 3s) are a lot of squandered opportunities. As a team too, 5/23 3pt shooting means that you had to settle for a lot of terrible jumpers. Your guards may not be good enough passers and handlers, and big men not good enough scorers for you to play such a slow offense. Playing patient cost you TOs and too many missed 3s.
It also looked like your excessive fouling got you into a lot of trouble. Nunavut made 11 pts off of FTs, and you lost by 10. Not fouling as much (having better defense) would really help you avoid giving up those easy points. It would also keep your opponents contained defensively (duh).
Also, the GS of some of your players is a lot worse than the opponent's. It looks like you play your lineups pretty extensively, and maybe more minute management would help your team down the stretch.
I suggest you sell a bunch of your not-so-hot players that are eating up minutes and salary and grab a well-skilled player or two that will help anchor the team. If you really want to keep playing patient, get a really good ball handler. Otherwise, if you want to play RnG or faster pace, maybe grab a star SG. Or, if you want to stay slow, get a star C with good ID and IS. If you sell off your weaker players (salary<2000), there will be more room for a star.
Finally, don't be so enamored by potential. You seem overly excited about your guy with HOF potential that you got for only 50k. I don't know his skills, but looking at his salary, stats, age, and the fact that nobody else bid on him tells me maybe he isn't the answer.
I don't have all the answers, but above are some of the things much better BB managers than I have told me.
Best of luck,
HN