Who is Lamar Jackson? Is he the guy we saw at the end of last season, who did a superb job making a gimmick Baltimore Ravens offense work despite little production in the passing game? Is he the worldbeater who pummeled the Miami Dolphins for five touchdowns in the 59-10 season opener Sunday? Is he something in between? Is he Keyser Soze? Is he the one who ordered the code red?

Many mistakes are made by fantasy owners by putting too much value in Week 1 performances, projecting similar production across an entire season. So we take that into consideration. The Dolphins appear so bad, wins against them don’t count toward NCAA bowl eligibility. So there’s that, too.

But there still is this: 17-for-20 for 324 yards, five touchdowns and a perfect 158.3 passer rating. The guy who last season relied on his legs rushed just three times for six yards while engineering a massive blowout. We saw him buying time in the pocket and making pinpoint throws deep downfield.

We can joke about how bad Miami is, but the numbers are what the numbers are. So yes, the Madman is reassessing his views on Lamar Jackson. He is going to be better than we thought. Yet …

We still wonder: What will happen when he faces a stiff defense? A team that can cover NFL receivers and force the QB to make throws into tight spaces? It’s sort of like asking if Jason Bateman can play a character different from Michael Bluth on “Arrested Development.” Can he? We don’t know, because we haven’t seen it yet.

Let’s imagine Jackson’s blockbuster opening game was a Jason Bateman scene in a movie. That scene took him out of his normal “Arrested Development” character. And he rocked that scene. Does that mean he can carry such a performance across an entire feature? Perhaps. Perhaps not.

So what do you do? Well, if you get handsome offers, by all means, consider them. If the offer includes an impact running back or wide receiver, or involves a marquee tight end, you can’t ignore it. QB is a deep fantasy position, so alternatives can always be found to fill that spot. If you have a second QB option that you prefer, of course you should put out unsolicited offers. For the same reasons.

But don’t feel like you have to move him. Consider the coming weeks: First, a home opener vs. an Arizona Cardinals team that gave up nearly 400 passing yards to Matthew Stafford. Next, a Kansas City Chiefs team that had one of the worst pass defenses last season and allowed backup Gardner Minshew to complete 22 of 25 attempts Sunday. After that, the Cleveland Browns, who made Marcus Mariota look awesome. Then the Pittsburgh Steelers, who were torched Sunday night by the Patriots.

Jackson is cast in some beefy roles in the weeks to come — which should reveal if he is a one-note actor, or if he is a fantasy award winner.