If you are one of the lucky ones, you have clinched a spot in your fantasy football league's postseason and are currently gearing up for the first round of the playoffs. With the early portion of the leg work now done, the most crucial part of the campaign will officially kickoff this week.

Although there are some out there who still have at least one more week to play before the postseason gets underway, those matchups are just as important. Fantasy football owners need to perform their best roster management of the season in Week 14. With so much on the line and seasons potentially coming to an end with a loss, everyone must have a well-rounded lineup and a deep bench to choose from.

As with the actual NFL, though, it will all begin under center at the quarterback position, so make sure you choose wisely.

Quarterbacks to Start in Week 14

Ryan Tannehill, Tennessee Titans

The Tennessee Titans won back-to-back games before being dismantled early on against the surging Cleveland Browns in Week 13. However, Tennessee can immediately get back on track in Week 14 against the lowly Jacksonville Jaguars. Although this is technically an AFC South rivalry game, the Titans have owned the Jaguars over the course of the last several seasons, which may actually be an understatement at this point.

Tennessee already defeated Jacksonville once this season and should be primed to do so again in Week 14. With Titans running back Derrick Henry looking to bounce back, there is no doubt that the Jaguars — like any other team in the NFL would — will be keying on the league's leading rusher.

However, there may not be enough defenders on the field for the Jaguars to account for Henry and wide receivers A.J. Brown and Corey Davis. With that in mind, Titans quarterback Ryan Tannehill should put together a massive performance against the Jaguars. Not only that, but the Titans have openly noted that the team would like to get the aforementioned Henry more involved in the passing game as well.

Baker Mayfield, Cleveland Browns

The Cleveland Browns had their best performance of the season in Week 13 against the Titans. With quarterback Baker Mayfield slinging the rock all over the field and then some, there is no reason to not ride the hot hand in Week 14.

The Browns will be taking on the rival Baltimore Ravens, and Mayfield could parlay his performance from a week ago into yet another gem this time around. Although Mayfield has been inconsistent for the majority of his time atop the highest level, this season included, the Browns now have nine wins and are headed straight toward the postseason.

On the other hand, the Ravens are still dealing with COVID-19 complications and injuries while fighting for their playoff life. With the Browns heading in the right direction and the Ravens in a tough spot, Mayfield must propel his team to victory in Week 14, which means that he will put on a show in the process.

Aaron Rodgers, Green Bay Packers

Green Bay Packers quarterback Aaron Rodgers has once again been lights out this season, putting together an MVP campaign for the heralded NFC North franchise. With Green Bay fresh off convincing victories over the Chicago Bears and Philadelphia Eagles, the Detroit Lions are up next.

It is not far-fetched to expect a huge performance from the legendary quarterback in Week 14. Rodgers and No. 1 wide receiver Davante Adams are clicking on all cylinders right now, and the Lions have one of the worst defenses in the NFL. There is simply no reason to not start Rodgers with so much on the line for both fantasy football owners and the Packers. It is truly as simple as that.

Quarterbacks to Sit in Week 14

Jared Goff, Los Angeles Rams

The Los Angeles Rams managed to defeat a solid — though inconsistent — Arizona Cardinals team in Week 13 and currently sit in first place in the NFC West. With the NFC West serving as the best group in all of football this season, it is pretty outstanding that the Rams now sit atop the standings ahead of the Cardinals, Seattle Seahawks and San Francisco 49ers.

However, the New England Patriots are up next for the Rams and quarterback Jared Goff, who have struggled on offense at various points of the season. The Patriots just pitched a shutout against Justin Herbert and the Los Angeles Chargers. With head coach Bill Belichick leading the way with his defensive mindset and the Patriots still playing for their playoff lives, this could be a pivotal week for New England, who could catch the Rams off guard since Los Angeles is riding high following Week 13's victory.

Don't expect much from Goff in Week 14 against a terrific Patriots defense.

Kyler Murray, Arizona Cardinals

The Arizona Cardinals are having a hard time on offense right now despite coming out of the gates hot earlier in the year. With quarterback Kyler Murray struggling, it would just be best to not risk it all on the second-year star this time around.

The Cardinals' Week 14 opponent in the surging New York Giants couldn't be hotter at the moment and are fresh off a season-defining win over the Seattle Seahawks, so Murray might not have much room to work with. The NFC East previously served as the laughingstock of the league, but the upstart Giants have now rattled off four straight wins.

With the Giants riding high and the Cardinals struggling to find a rhythm on offense, playing it safe and avoiding Murray is probably the smart move in Week 14. Due to the fact that the majority of fantasy football owners have so much on the line in Week 14, perhaps playing a quarterback with a more favorable matchup will better suit those who employ Murray.

Derek Carr, Las Vegas Raiders

Are the Las Vegas Raiders a good football team? If you can't tell through 13 weeks of the regular season, the correct answer is probably not. The Raiders barely escaped the winless New York Jets in Week 13, and the road will only get tougher in Week 14 against a hungry Indianapolis Colts squad that absolutely needs to come away from a victory.

With the Colts fighting for position in the AFC as the postseason begins to loom large, they will no doubt lean on their stout defense against an iffy Raiders offense — a group that is hit or miss each and every week. With Raiders quarterback Derek Carr becoming the epitome of Dr. Jekyll and Mr. Hyde in terms of his play from under center each week, the Colts could feast on an inconsistent opponent in Week 14.

The Raiders will likely be without star running back Josh Jacobs yet again, which certainly doesn't aid the play of Carr and is bad news for his fantasy football owners.