LOS ANGELES — Lincoln Riley was asked Tuesday how he feels about USC’s depth — or lack thereof — at tight end. “Right now? Today? Not good,” he said with a few laughs mixed in. Riley went on to describe the two scholarship players the Trojans have available this spring, how they’re progressing well, then talked about some reinforcements they’ll add in training camp before ending his response by saying: “It’s going to be good, it’s just currently at this moment right now not very good.” Advertisement The outlook for the position became much, much brighter Thursday when USC landed…