There was plenty of depth up front. Marshall Plumlee was in his 3rd year at Duke. Ojeleye was just a freshman, but he could have played some, too. The coaches chose not to play them as much. The problem was overplay as usual. Duke fouled a ton due to the new fouling rules emphasis, and added to the layup lines given up like every other Duke team - until this season - the defense was a disaster.
Also, why do people continually act like a Hood, Jabari, and Amile frontcourt is small and out of position in college basketball?