Javier Assad tries to stay on roll for the Chicago Cubs — while Marcus Stroman takes the next step in his rehab

Good luck trying to find right-hander Javier Assad on old prospect lists. Assad hadn’t gained much attention outside the Chicago Cubs organization while in the minors because he doesn’t own the eye-catching stuff that becomes notable when a player works his way up the system. But the consistency the Cubs have seen from Assad since he slotted into the rotation Aug. 5 is why he has become so …