If Mitchell Trubisky can make a leap in his second season, the Chicago Bears offense can get fun in a hurry. (AP Photo/Charles Rex Arbogast)

The Chicago Bears have won nine league championships and 749 regular season games since the franchise was founded in 1920. Twenty-seven former Bears are enshrined in the Pro Football Hall of Fame and 69 have been selected as first-team All-Pros. The names of the greatest players in team history — Payton, Sayers, Butkus, Nagurski — are synonymous with excellence at their respective positions.

And yet somehow, as this franchise enters its 99th season, the Bears’ all-time leading passer is Jay Christopher Cutler.

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In fact, Cutler holds pretty much every significant career Chicago Bears record at the game’s most important position, including passing yardage, completions, passer rating, completion percentage and touchdowns. Remarkably, no quarterback in the history of this franchise has managed to throw for 4000 yards in a single season. Erik Kramer’s 3838 yards back in 1995 remains the team’s top mark. Jacksonville, Carolina and Tampa Bay have all had multiple 4000-yard passers while Chicago is still waiting for its first.

The Bears finished last in the NFL in passing last year and 30th in total offense, so things can only get better under the team’s new head coach. Matt Nagy arrives in Chicago after spending the previous decade climbing the coaching hierarchy under Andy Reid, first in Philadelphia and then in Kansas City. Nagy served as offensive coordinator of the league’s sixth highest-scoring offense last season, plus he oversaw the mid-career breakout performance of Alex Smith. There’s plenty to like in his coaching record. Nagy quickly hired former University of Oregon head coach Mark Helfrich as his OC, which adds another layer of fun.

When the Nagy/Helfrich offense is fully operational for Chicago, things should get legitimately interesting. It’s not crazy to think this team’s second-year quarterback has the potential to deliver the most productive passing season in team history, finally dislodging Kramer from the record book. Cutler’s career marks should not survive Mitchell Trubisky’s second contract.

Trubisky is guaranteed to make a substantial leap in 2018

It feels relatively safe to predict a Trubisky surge, because the team asked so little of him last season. We would say that John Fox and his staff kept training wheels on the offense, but that’s an insult to all the brave kids out there riding big-boy bikes with extra wheels for safety. At least those kids are moving forward. Chicago’s offense was basically inert in 2017. Trubisky ranked dead-last in the NFL among qualified starters in both deep attempts per game (2.5) and air yards (98.2) according to Player Profiler. This offense took no shots and gained nothing.

Whatever else happens this year, Trubisky and friends will definitely play a more entertaining game:

#Bears QB Mitchell Trubisky with us on @SiriusXMNFL now: “We’re going to spread the field and definitely use all our weapons.” Will see things from Matt Nagy’s #Chiefs days, have “twists and tricks” from Mark Helfrich/Oregon, mix in some tempo … more complex than he’s used to. — Tom Pelissero (@TomPelissero) July 2, 2018

Nagy was a big believer in Trubisky’s talent during the pre-draft process two years ago, and, by all accounts, the pair has clicked this offseason. Concepts and formations should feel similar to the QB’s college offense, and the system should generally take advantage of his live arm and dual-threat ability. Nagy has indicated the playbook will be 70-80 percent similar to what KC ran last year, with a few added flourishes. It was clear enough last season, despite the timidity of Chicago’s offense, that Trubisky has the necessary physical traits to thrive as a pro. His receiving corps is suddenly loaded with versatile athletes, too. Trubisky is essentially free in fantasy drafts (ADP 164.1, QB24). He’s worth targeting in super-flex and best-ball formats.

Let’s try to remember, however, that year-to-year continuity is critical to success in the NFL, and Chicago has none of it. That’s a small concern. This team has a first-year head coach working with a second-year QB, installing a new scheme. Every key member of the receiving corps is new. Bears fans and fantasy owners will need to be patient with this group. We should expect hiccups in the opening weeks.