Michael Reaves/Getty Images6 NFL head training positions stay open, however ESPN's Adam Schefter reported on SportsCenter Sunday that "most, if not all" might be filled by the end of the week.Schefter made that remark after the Detroit Lions, who have 2 leading prospects in offending organizer Ben Johnson and protective planner Aaron Glenn, lost to the Washington Commanders 45-31 in the NFC Divisional round on Saturday."That was among the by-products of that disturbed last night in Detroit, since the NFL training working with cycle now has actually been increase significantly," Schefter stated. "And we can see most if not all of these openings filled by the end of this week."Since Sunday, the Dallas Cowboys, Chicago Bears, New York Jets, New Orleans Saints, Las Vegas Raiders and Jacksonvil...