NASHVILLE https://www.broncosfanstore.com/Andy-Janovich-Jersey , Tenn. (AP) — The only question about Tom Brady as quarterback in New England is when Father Time finally wins before the five-time Super Bowl champ decides he’s done with the NFL.Same for Drew Brees in New Orleans or Philip Rivers with the Chargers.Aaron Rodgers is expected back at his usual level returning from injury for Green Bay, and Deshaun Watson tantalized before his own injury cut short a very promising rookie season. Even though it’s been a while since Andrew Luck threw a pass in an NFL game, his resume gives him plenty of cushion as he recovers from shoulder surgery.Not every quarterback has the same grip on a starting job as Brady, Brees or Rodgers, and a poor game or sloppy start can lead to a spot on the bench. Add a promising rookie into the mix, the leash can be even shorter.Here’s a look at some quarterbacks who need to play well to remain starters as training camps open around the league:JAMEIS WINSTON, BUCCANEERSYes, Marcus Mariota must prove he can play all 16 games in a season, but the Tennessee Titans already have picked up Mariota’s fifth-year option for 2019. Same for Tampa Bay for Jameis Winston, the quarterback taken a spot ahead of Mariota in 2015. Both are due $20.9 million in 2019 at what could be a bargain the way the market is booming for quarterbacks.On the other hand, Winston will miss the first three games this season with the quarterback suspended for violating the NFL’s personal conduct policy after a league investigation of an accusation that the 2013 Heisman Trophy winner groped a female Uber driver during a ride in Arizona in March 2016. That’s not a great combination when Bucs coach Dirk Koetter’s job security already is at risk after a 5-11 record last season. Tampa Bay brought back veteran Ryan Fitzpatrick, who started three games in Winston’s place last season, for an experienced backup.JIMMY GAROPPOLO, 49ERSJimmy G could do no wrong for the 49ers last season, winning five straight games after finally moving into the starting lineup. San Francisco wasted little time signing the young quarterback to a five-year contract worth $137.5 million at an average of $27.5 million per season. The 49ers also re-signed receiver Marquise Goodwin to keep a top target around.As good as Garoppolo looked, there’s now plenty of game tape of him running coach Kyle Shanahan’s offense. Defensive coordinators, especially those in the NFC West, have had all offseason to figure out how to slow down Garoppolo.TYROD TAYLOR, BROWNSHelping the Bills stop a seemingly endless playoff drought wasn’t enough to keep Taylor on the job in Buffalo. The Cleveland Browns traded for Taylor on the eve of free agency, and that’s normally a sure sign a team is heavily invested in a player. Then the Browns went quarterback with the No. 1 overall pick in the draft, selecting Baker Mayfield. Keeping Mayfield on the bench depends mostly on how long Taylor plays well.JOE FLACCO, RAVENSThe 10-year veteran has missed a mere six games since being drafted by Baltimore in 2008 Matt Paradis Color Rush Jersey , all in 2015, and led the Ravens to a Super Bowl in 2012. But the Ravens last reached the playoffs in 2014, and general manager Ozzie Newsome made sure to give himself options in his final year in charge. Not Robert Griffin III, who last started a game in 2016 with Cleveland.Newsome traded to get the final pick of the first round in April to select Lamar Jackson . Yes, the Ravens insist they want to develop Jackson and be patient. If Flacco struggles, Jackson, who threw 57 touchdown passes over the past two seasons in college at Louisville and won a Heisman Trophy, could start looking really good much sooner.CASE KEENUM, BRONCOSComing off the bench and leading Minnesota to the NFC championship game is one thing. Playing quarterback under the watchful eye of Hall of Famer John Elway in Denver is quite a different challenge. Keenum comes in as the starter after the best season of his career . He’ll need to pick up where he left off to stop the Broncos’ quarterback carousel , with backup Paxton Lynch, the 26th pick overall in 2016, sitting on the bench and, thus far, showing little when he has played.PATRICK MAHOMES IIWith Alex Smith traded to Washington , all the pressure now is on Mahomes in Kansas City after he was the target of all those longing looks to the bench by fans during his rookie season. He looked good winning his first NFL start in last year’s regular-season finale . That won’t help with expectations remaining high for the Chiefs, who won the AFC West before blowing a wild-card game to the Titans at Arrowhead Stadium in the playoffs. ENGLEWOOD, Colo. (AP) — Peyton Manning hasn’t strayed too far from football in retirement, serving as a volunteer coach at his kid’s youth games, hosting a show celebrating the NFL’s 100th season and visiting old friends like he did Thursday when he dropped by the Denver Broncos‘ practice.Only a handful of teammates remain from the squad that won Super Bowl 50 with him three years ago, and it’s a good thing cornerback Chris Harris Jr.’s contract stalemate was resolved this week or there would have been one less familiar face.Manning still keeps tabs mostly on Indianapolis and Denver, where he played, and on New York Carlos Henderson Jersey , where his brother Eli is in a QB battle with Giants rookie Daniel Jones and where his former offensive coordinator Adam Gase is now running the Jets.Despite rumors that Manning was up for the Jets’ GM job following the ouster of Mike Maccagnan, Manning said Gase never contacted him about the job.“He never did. I have spoken with Adam, of course, since he’s been there, but I did not speak with him about that nor was I contacted by anyone,” Manning told a group of beat reporters in a wide-ranging interview.“But as I’ve said before, I enjoy keeping up with of course Eli, but (also) the players or coaches that I’ve played with, played for — not many players here that I’ve played with. I was meeting a lot of players here for the first time.”Manning said he enjoyed catching up with Broncos new head coach Vic Fangio, who was his defensive coordinator in Indianapolis from 1999-2001. Manning said Fangio’s arrival in Indy “had a lot to do with” the Colts‘ turnaround from 3-13 his rookie year in 1998 to 13-3 in ’99.“He’s super competitive and he wanted to win every practice against the offense,” Manning recounted, adding, “I think it helped me a lot.”Manning recalled one practice in particular where he complained loudly that the DBs were holding his receivers and afterward found a plate of wine and cheese in his locker, a present from Fangio.Manning ended up going 15-1 against Fangio’s defenses during his career.“I don’t remember him bothering me that much, but I guess I kept it with me,” Manning said. “But I’m happy for him getting his opportunity to be a head coach. He has certainly paid his dues. He is all football. He is a grinder. And I think he’ll do a great job.”Manning also visited with quarterback Joe Flacco , who’s trying to do the same thing Manning did seven years ago when he revived not only his own career in Denver but also the fortunes of a foundering franchise.“I think he’ll have a great year,” Manning said, adding that rookie Drew Lock is in a good spot getting to learn from the veteran QB.Manning said what he misses about playing is the camaraderie.“I miss my teammates because you don’t see them every day,” he said. “That’s the greatest thing about football. You were around the guys every single day. Huddle. Plane rides. Cafeteria. The off-the-field things.”He said he was looking forward to attending the Pro Football Hall of Fame induction ceremonies in August for Broncos owner Pat Bowlen and cornerback Champ Bailey, but never thinks about his own enshrinement prospects. He’s eligible in 2021.Asked if he’s going to work in the league someday, Manning said https://www.broncosfanstore.com/Ronald-Leary-Jersey , “I can’t speak too far into the future. I guess in a way, I am right now doing this little thing for the NFL, on the 100th year.”Manning is hosting and serving as an executive producer for “Peyton’s Places ,” a five-part, 30-episode series celebrating the NFL’s 100th season. The show debuts on ESPNin July, with ESPN and ABC airing special compilations.Beyond that, “I can’t look into a glass and say what I am going to be wanting to do this year, next year or five years from now,” Manning said. “I do know I want to stay close to it, connected to it.”Manning, who said he turned down the chance to work on the “Monday Night Football” telecasts because the timing wasn’t right this year, spends plenty of time shuttling his 8-year-old twins Marshall and Mosley to their games.“I will be at the Yankees and Smashers’ 8-year-old baseball and softball games, Marshall and Mosley,” Manning said. “I am not coaching. I am a volunteer assistant.Manning is so busy nowadays that he shuns the word “retirement.”“It’s my second chapter, if you will,” he said. “I don’t have that one-word job description, coaching or broadcasting. I have just been kind of busy doing lots of things. That’s important to be able to go those games. … There’s flag football on Sunday. Marshall is playing for the Rams. He has a game on Sunday at 4.”And parents trust him around their kids after his United Way skit on “SNL” ?“Certain parents are very hesitant,” Manning deadpanned. “I kind of have to earn it as a volunteer assistant. It’s funny. It’s fun.”