UCLA has a pretty stingy defense, but Memphis' atrocious play was mostly their own doing. They had plenty of open shots; they just couldn't make any. Part of the problem stems from their glorified streetball-style offense. With that style of play, finding a rhythm on offense in a methodical, halfcourt game is next to impossible.
Despite going 2-17 from three-point range and shooting 31% overall in the game, Memphis managed to keep the game close because UCLA stunk up the joint as well--20-39 from FT, 35% FG.
Of course, UCLA and their fans won't care because a win is a win is a win. For the rest of us, look out for the LSU/UCLA matchup next week; the final score may be 6-4.