Getty Miami Hurricanes edge defender Rueben Bain Jr. The Baltimore Ravens could use some youth — some vigor — on a quickly aging and injured defensive front that features 31-year-old edge rusher Trey Hendrickson and not much else. They could give themselves a quick infusion of talent by drafting University of Miami do-it-all defensive lineman Rueben Bain at No. 14 overall, which ESPN’s Field Yates predicted they will do in his final mock draft released on Thursday . “The Ravens’ pass rush will