Early in the 2026-27 NHL season, the Toronto Maple Leafs have displayed a stark disparity between their first and second lines. While their top unit has excelled in creating scoring opportunities, their second line has struggled with possession and offensive output, prompting scrutiny over lineup adjustments as the regular season progresses.
Consistency from the second line will be critical for the Maple Leafs to sustain playoff aspirations. However, through the season’s opening games, John Tavares, Gavin McKenna, and William Nylander have faced challenges maintaining puck control and generating offense at even strength. Meanwhile, their first line has emerged as one of the NHL’s most dominant units in expected goals generation during five-on-five play.
The second line’s struggles contrast sharply with the first line’s success. While positioned as a top performer, Nylander’s trio has been outshot, outmuscled, and outproduced relative to other competitive line combinations.

The first line’s dominance is underscored by a +10 shot differential in three games, ranking fourth among lines with at least 20 minutes of ice time. Their +14 advantage in high-danger slot shots ranks first in the league, while their 84.3% expected goals rate at even strength places them atop the leaderboard in controlling quality scoring opportunities.
Despite these metrics, goal-scoring has yet to materialize, with a zero differential through three contests. The line’s advanced statistics suggest a surge in output is imminent, particularly if their dominant possession play translates to puck-moving success.

Maple Leafs’ Top Line Driving the Play
Kirill Marchenko, Auston Matthews, and Jack Roslovic have formed a formidable first line, ranking among the NHL’s elite in advanced metrics. Their +10 shot differential and first-place slot-shot advantage reflect relentless pressure on opponents. A career-high 84.3% expected goals percentage highlights their ability to generate high-quality scoring chances consistently at five-on-five.
While goal differential remains neutral at 0, their statistical dominance suggests scoring chances will soon materialize. This line’s performance raises expectations for sustained offensive output as the season unfolds.
McKenna-Tavares-Nylander Still Searching for Answers
The second line of John Tavares, Gavin McKenna, and William Nylander has faced mounting challenges. Their -10 shot differential and last-place slot-shot rate (-8) reveal struggles in creating offensive opportunities. Most concerning is their 15.2% expected goals rate, ranking last among all line combinations with 20+ minutes of ice time, indicating their chances are consistently overshadowed by opponents.
Through three games, their -3 goal differential has not yet inflicted significant damage but underscores the need for improvement. Without adjustments, these metrics threaten their ability to contribute meaningfully to the team’s success.
Maple Leafs Might Need to Make Adjustments

Sample size considerations suggest early-season struggles could normalize. However, the chemistry between Tavares, McKenna, and Nylander—despite their combined talent—requires immediate attention. The coaching staff, led by Jim Hiller, must balance patience with the urgency to improve their second-line performance, especially as options like the third line remain inconsistent.
The stark contrast between the two lines highlights a critical juncture for the Maple Leafs. Maintaining the first line’s momentum is vital, but resolving the second line’s inefficiencies will determine whether they can build on a promising start to the campaign.
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