National Football League
                === McElroy takes over as Jets host Chargers ===
 (Sports Network) - They're certainly not your father's New York Jets. And
 within a few months, they might not even resemble your own New York Jets.
 But exactly how drastic the offseason changes will be -- read: who will keep
 their jobs and who won't -- may have at least something to do with the next
 two Sundays.
 Phase 1 of either a roster tune-up or a front-office bloodletting begins this
 Sunday at MetLife Stadium, where the Jets will host the San Diego Chargers in
 their first home appearance since being mathematically eliminated from the
 playoffs in a Monday loss at Tennessee.
 That game featured the latest in a series of dreadful outcomes for quarterback
 Mark Sanchez -- four interceptions, one fumble -- and may have officially
 signaled the end of his run as the franchise's "franchise quarterback," or at
 the very least his run as its undisputed starter.
 Former seventh-round draft pick Greg McElroy gets his first NFL start under
 center this week after a decision coach Rex Ryan framed as being in the best
 interest of the team.
 "This is my opinion, and I do believe that it's best for our team that Greg is
 our quarterback," Ryan said. "I'm the guy that's making this decision. Every
 decision I make is based on what I believe is the best decision for the team.
 I definitely think I want to see what Greg can do. He's a winner. He's been a
 winner his whole life."
 The former national championship QB at Alabama subbed in for Sanchez a few
 weeks back against Arizona and led New York to its only points in a desultory
 7-6 victory. But he didn't play in a subsequent win at Jacksonville a week
 later, nor did he see the field during Sanchez's meltdown at Tennessee.
 In fact, the most prevalent questions surrounding quarterbacks this week are
 actually more pertinent to Sanchez and now third-stringer Tim Tebow, and how
 soon either -- or both -- will become former Jets at the close of the season.
 Sanchez has 50 turnovers in the last two seasons -- including a league-high 24
 this year -- while Tebow has thrown only eight passes and run for just 102
 yards all year despite an offseason in which his arrival to the offense was
 promised to prompt chronic matchup nightmares for foes.
 As a result of that folly, it's also up for grabs whether Ryan, offensive
 coordinator Tony Sparano or general manager Mike Tannenbaum will still be
 around for draft day in April.
 "People can speculate anything they want," Ryan said. "Obviously, as a
 football team, we're 6-8 and nobody's happy about that and ultimately, I'm the
 one accountable."
 The job security is little better on the other sideline.
 San Diego coach Norv Turner has all but written his farewell speech near the
 close of a season in which the Chargers will miss the playoffs for a third
 straight time and finish with their first losing record since going 4-12 under
 Marty Schottenheimer in 2003.
 Turner was quoted earlier this season saying he thought it'd take a playoff
 spot to save his gig, and more remarks this week have made it look as if he's
 already pondering where he'll land next.
 Asked about a subsequent role as an offensive coordinator, he said he'd covet
 "a place where you have an opportunity to win and be in a situation that there
 are coaches I've worked with and been around. I think I, in the right
 situation, could help somebody."
 Turner's got his own QB issues with longtime starter Philip Rivers, who's
 committed 47 turnovers in two seasons and thrown 15 interceptions in 2012.
 Rivers fumbled four times in last week's 24-point home loss to Carolina while
 throwing one TD pass and ending with 121 yards.
 San Diego had just 164 yards of total offense -- a season low.
 "I think bottom line, we didn't show up," linebacker Takeo Spikes said.
 The Jets have allowed only 117 pass yards and 240.7 total yards per game in
 their last three.
 Additionally, Rivers heads to New Jersey without running back Ryan Mathews,
 wide receiver Malcom Floyd and right tackle Reggie Wells, all of whom went on
 injured reserve this week.
 Nonetheless, he said motivation wouldn't be an issue this week, in spite of
 the game's lack of importance.
 "You played like crazy when nobody was watching and nobody cared " but you
 cared," he said.
 The Chargers lead the all-time series, 19-12-1, though the Jets have won three
 of the last five games. New York won, 27-21, at home in October 2011 with
 three TD passes from Sanchez to Plaxico Burress and 112 rush yards from Shonn
 Greene. Ryan is 2-0 lifetime against San Diego, while Turner has split six
 career games with the Jets.
 The Jets have branded themselves as ferocious on defense since Ryan's arrival
 in 2009, but the blitzing part of the aggression has been dialed down this
 year with the back-end absence of all-everything cornerback Darrelle Revis.
 The Chargers have been especially vulnerable to pressure, though, and Rivers
 tends to struggle when under duress. Look for Ryan and defensive coordinator
 Mike Pettine to dial up schemes to fluster the San Diego signal-caller in an
 effort to control field position, create mistakes and cover up for an offense
 of their own that's not likely to detonate the scoreboard.
 From a marquee playoff matchup in 2009 to a play-out-the-string debacle in
 2012, this matchup shines a spotlight on two plummeting franchises. While
 Turner's exit is all but announced, Ryan probably still has time to save
 himself and make at least some sense of personnel going forward. The insertion
 of McElroy provides enough of a boost here to get the Jets a lesser-of-two-
 evils win, though it's a sure bet cameras will be paying as much attention to
 No. 6 and No. 15 on the sidelines as to anything on the field.
 Sports Network predicted outcome: Jets 24, Chargers 20
 12/21 10:08:30 ET