you are lacking in offense, overall. in the mid level of d1, trying to get some offensive players who can compete with the big boys, that is the single most important factor in success. its late, so i won't go into much detail, but basically that is a result of the diminishing returns inherent in the game. your key offensive players are the most important players on the team (they are the folks who benefit the most from a sharp diminishing returns curve, where the lead offensive players contribute dramatically more than subsequent players of similar quality - and usually there is a significant drop off in talent)... while depth wise, your 4th and 5th defenders are the most important (they are the folks hit least hard by diminishing returns).
anyway, at your level, great depth is impossible, so you have to prioritize. offensive is top of the priority, and particularly, perimeter based scoring from the 1-3. starting bales and eastridge is sort of a must, IMO. the rebounding hit of a guard sf is much less important, when you have quality rebounding at the 4-5, where rebounding is of the utmost importance (it all goes back to diminishing returns).
not sure if i am making any sense, pretty much ready to pass out, just finishing my last drink... ask me a follow up if this doesn't make sense and ill clarify tomorrow when i make more sense :)