USC head coach Lincoln Riley is taking his Trojans through the final week of spring ball, with the spring game set for Saturday afternoon in the Coliseum. Following Tuesday’s practice, Riley was asked which Trojans had impressed the most through 13 spring ball practices. As usual, Riley hesitated to jump into naming names. He typically either tries to say there is still more to prove for everybody or will spread praise out over just about every position group. Riley did say “there’s been a lot of guys.” But he did come up with two specific names (before including a number of other players). Ri…