TORONTO — So many storylines through five weeks in the 2016 CFL season, so many questions.

No matter who’s catching the passes, Trevor Harris and the Ottawa REDBLACKS continue to light up the scoreboard; the Riders may have gotten a glimpse of their future in Mitchell Gale; a Scott Milanovich offence ranks last in the league in yards per game; and the BC Lions have sabotaged almost everyone’s predictions so far by leading the West heading into their bye.

With Week 5 matchups on the way, we want you to have your say.

Here are nine pressing questions for Week 5:

1. Is Trevor Harris the best quarterback in the CFL?

As the sample size grows, it’s a question that deserves consideration. Harris led the league in touchdown passes and was in the running for Most Outstanding Player through most of 2015 — until being sidelined in favour of a returning league legend in Ricky Ray following two poor starts.

Whether he’s looking to prove the Argos wrong or just be the best quarterback out there, Harris has been a man on a mission since signing with Ottawa and subbing in for the injured Henry Burris during a Week 1 overtime win vs. the Eskimos, leading the league in virtually every passing category from completion percentage (82.5) to yards (1,475) and touchdowns (nine).

» MMQB: Harris in a class of his own

Trevor Harris continues his scorching start out of the gate in 2016 (Adam Gagnon/CFL.ca)

The longer he plays at this level, the less likely it is his numbers will regress like some might be expecting. Harris might now be one of the big dogs (think Mike Reilly, Bo Levi Mitchell et al), but is he better than all of them?

2. Is Mitchell Gale a future starting quarterback?

It appears Darian Durant has escaped serious injury after exiting a Week 4 loss to the Lions, but the veteran pivot’s third injury in three years may have some Riders fans wondering about a future beyond Durant. Whether that starts soon or five years from now is up in the air, but either way, Chris Jones and co. have already started working on grooming a future starter.

Gale showed he can read a defence and deliver timely and accurate passes in a 40-27 loss to BC, throwing for 247 yards and a touchdown on 17-of-30 passing. He put the Riders in a position to win if not for a fourth quarter in which they were outscored 21-4, thanks in part to a career day from Jonathon Jennings.

Jones made the call after pre-season that Brett Smith is not the quarterback of the future in Riderville, but is Gale?

3. Do you still have confidence in Drew Willy?

Some soft whispers for Matt Nichols can be heard out of Winnipeg these days after the Bombers fell to 1-3 this season vs. Edmonton, but Head Coach Mike O’Shea has confirmed Drew Willy is still his starting quarterback.

Willy has put up decent numbers through four starts this season, ranking second in the league with 1,239 passing yards while completing 72 per cent of his passes.

At the same time, however, a lot of those yards came early in the season with his team in a deep hole, while his five touchdown passes to three interceptions are not favourable among starting quarterbacks.

Two of those interceptions came in a 20-16 loss to the Eskimos on home turf, one the Bombers may feel they squandered after playing the defending Grey Cup Champions close but managing only three second-half points.

It’s not that the Bombers don’t have a second option to turn to — Nichols played well as the starter late last season. But while the Bombers still have confidence in Willy, do you?

4. What’s holding back the Argo offence?

Despite the numbers of Trevor Harris, Rich Stubler’s defence did the job in Week 4 in that it bent but seldom broke. It was a late Tristan Jackson punt return touchdown and, more than anything, a lack of punch from the Argo offence that sealed the Argos’ fate in an early-season battle for first place at BMO Field.

Scott Milanovich’s offences since arriving in Toronto in 2012 have ranked third (2012), fourth (2013), fourth (2014) and sixth (2015) in the CFL. Through four games in 2016 the Argos are ranked dead-last on offence and right now it’s not even close — their 290.5 yards per game are well behind eighth-place Hamilton at 317.3 yards per game.

So what’s holding back the Argos’ offence? Ricky Ray has some rust to shake off despite some respectable numbers (1,000 passing yards, six touchdowns and just one interception); the O-line is struggling to protect Ray, allowing the third-most sacks in the league with 12; while Brandon Whitaker and the run game have struggled to make an impact with a team total of 210 yards (52.5 per game, last in the CFL).

What’s it going to take for the Argos to break out of their offensive slump? (Adam Gagnon/CFL.ca)

The struggles, while multi-faceted, are highly uncharacteristic for a Scott Milanovich-coached team, and with Ray in the fifth year of the system and most of the receivers in their second, that unit is not where it needs to be for the Argos to be in the playoffs.

5. Is the Eskimos’ defence good enough?

It’s been talked about ad nauseam but can’t be avoided: the topic of the Edmonton Eskimos’ defence. After losing half of their starters in 2016 and the mastermind of it all in Chris Jones, the Eskimos were forced to rebuild the backbone of a unit that helped them win 14 regular season games and a Grey Cup Championship in 2015.

Through the first two games the results weren’t good, but a strong performance in Week 4 against the Bombers appears to have Mike Benevides’ unit on the right track after holding Winnipeg to just three second-half points for a 20-16 victory on the road.

We know this: the Eskimos’ offence is about as good as it gets in the CFL. Mike Reilly, Adarius Bowman and Derel Walker combined with Jason Maas and the rest of that unit make the Green and Gold an immediate Grey Cup contender.

Is the new-look defence good enough? It’s still the million-dollar question both now and for the remainder of the season.

6. Are the BC Lions for real?

Sounds simple enough. About a month ago when everyone was making 2016 predictions, the names we heard most in the West were the Stamps, the Eskimos and even the Bombers and Riders. Don’t look now but the team no one talked about is leading the West with a 3-1 record.

With the CFL’s all-time wins leader back on the sideline and Adam Bighill and Solomon Elimimian patrolling the middle of the defence, the 2016 Lions are starting to resemble those of 2011 — the same ones that went on to produce the Most Outstanding Player at quarterback (Travis Lulay) and an eventual Grey Cup Championship.

» Dunk’s QB Index: Jennings jumps the list

A career day for Jonathon Jennings in Week 4 has the Lions in first place (The Canadian Press)

The defence is solid, ranking second in net yards (316 yards per game) and that’s not changing soon (the next-closest team, Ottawa, averages 365 yards per game). The offence, while middle of the road, has leaned on the league’s top rushing attack with 429 yards on the ground (107.3 yards per game).

For a team with no glaring weaknesses and a young quarterback on the uptick (23-year-old Jonathon Jennings is coming off a career game vs. the Riders), it’s hard to ignore what the Lions have done so far.

Convinced?

7. With Zach Collaros’ return on the horizon, is the East the Ticats’ to take?

It seems like a silly question with the start the Ottawa REDBLACKS have had, but remember — the 18-game CFL season is a marathon not a race. Few times are there wire-to-wire winners and this question must be prefaced by saying a game-and-a-half lead with 14 to go is very slim.

The REDBLACKS are the class of the CFL through four weeks but the Ticats have managed to keep their head above water with a 2-2 record despite not having Zach Collaros in the lineup. And, as the schedule-makers would have it, these East Division foes don’t clash until Week 17, when they launch a home-and-home.

The Ticats are firing on all cylinders in Orlondo Steinauer’s defence, while Collaros played at an MOP level in 2015 before his season-ending injury. If Hamilton can stay within two games, it’s whoever’s playing their best football at that time that will finish higher in the standings.

That’s not to forget about the Argos or Alouettes, of course.

8. Will Kevin Glenn’s return offset the Alouettes’ struggles?

The Alouettes have struggled the last game and a half, getting outscored 45-15 over the last six quarters. While Duron Carter awaits a ruling on his appealed suspension (but is playing) and S.J. Green (out for season), Kenny Stafford and Tyrell Sutton remain on the shelf, can Glenn’s return provide the spark Jim Popp’s team needs?

We know the Alouettes can play defence after that unit held its own against the league’s top offence in Ottawa, while the Ticats could only muster five points in the first 30 minutes during a 31-7 win over the Als last weekend.

» Glenn returns to practice for Alouettes

The return of Kevin Glenn should provide a boost for the Alouette offence (CFL.ca)

The question is whether Glenn can work with the bright offensive minds of Anthony Calvillo and Jacques Chapdelaine to get the Alouettes’ offence back on track. Working with Carter and some unexpected contributors in Brandon Rutley and B.J. Cunningham, Glenn will get to work on Monday in Toronto where there are yards to be had against the Argos’ defence.

At 1-2, the Als have reached a pivotal crossroad in their season. A .500 start isn’t all that bad, but a 1-3 hole could be hard to dig out of. The Alouettes missed Glenn in Week 4 and a lot of what happens next is up to him.

9. Who will emerge as the No. 1 receiver for the Stamps?

After back-to-back wins, the news gets better for the Stampeders who could dress all five regulars on their O-line this week for the first time in 2016. That’s great for quarterback Bo Levi Mitchell, the Stamps’ rushing attack and an overall offence that ranks third in the league in yards per game (383.7) through four weeks.

The real question is in the receiving corps, more specifically, who’s the go-to receiver in the Stampede City? So far Marquay McDaniel and Joe West have been Mitchell’s favourite targets, although West is slated to miss action due to an ankle injury. Meanwhile, five others have made an impact, including young national Lemar Durant, ranging anywhere from 48 receiving yards to 111.

For a team used to having the likes of Eric Rogers, Jeremaine Copeland and Nik Lewis carrying the load at different times over the last decade or so, this pass-catcher by committee concept is a new one for the Red and White.

Will someone emerge as a true No. 1 in Calgary, or will the leader in targets change on a weekly basis?