New Browns General Manager John Dorsey has the reputation of really knowing his stuff, especially when it comes to evaluating quarterbacks.

He’ll need all that ability – and then some – to navigate his way through this class of quarterback prospects and pick the right one at the top of the NFL Draft in two months.

There’s USC’s Sam Darnold, who has been the quarterback most linked to the Browns at No. 1 overall. Probably because he is working with a personal coach to work out some issues in his motion, he has decided not to throw at the NFL Combine that began Tuesday at Lucas Oil Stadium.

The Trojans probably now wish he had decided not to throw against Ohio State in their 24-7 loss in the Cotton Bowl two months ago. The Buckeyes humiliated him. You would think he would have jumped at the first chance to redeem himself after that pathetic performance, but I guess not. He had better be lights-out at his private workouts.

In the meantime, though, I question his competitiveness.

Then there’s UCLA’s Josh Rosen. Wonder if his backpedaling from comments that seemed for all the world to indicate that he didn’t want to play for the Browns, is any better than his backpedaling into the pocket?

Oh, that’s right, he didn’t backpedal at all in the Bruins’ 35-7 loss to Kansas State in the Cactus Bowl. Wanting to avoid any chance of being hurt, he chose not to play.

So do you question his competitiveness, too? I do.

Josh Allen’s “down side” is that he played at off-the-beaten-path Wyoming. Yes, he is good, but were the teams he was playing against any good?

Then there’s Baker “Iwo Jima” Mayfield, who, after leading his Oklahoma Sooners past the Buckeyes early last season, decided to plant his school’s flag at midfield at Ohio Stadium.

Well, at least he didn’t grab his personal parts on the sideline.

Uh, he did that as well in another game.

All four quarterbacks are believed to be the only ones under consideration to be drafted by Cleveland with either its No. 1 overall or No. 4 overall picks.

How does Dorsey sift through those fatal flaws with each prospect?

That’s a good question – the big question, really – and he has to figure it all out. After all, he was brought in here to, most importantly, make the right call on the quarterbacks.

If he does, then they’ll have a parade for him in Cleveland. And if he doesn’t, then they’ll eventually ride him out of town on a rail.