When four North Carolina players were chosen in the first 14 picks of the 2005 NBA draft, I thought, “No chance of repeating this.’’

It won’t be repeated this time, but I won’t be the least surprised if senior Tyler Zeller and underclassmen Harrison Barnes, John Henson and Kendall Marshall all go within the first 20 picks of June’s draft. UNC announced Thursday that Barnes, Henson and Marshall are all making themselves draft-eligible.

Funny how much has changed since October; back then Barnes seemed a top-five lock and few saw Marshall as someone who’d even consider turning pro. Then Marshall became the country’s assist leader and we saw wing shooter Barnes’ reputation shrink seemingly an inch a day.

Barnes is probably still the first Tar Heel drafted, although that’s no sure thing. Zeller might be the safest pick and could go higher than generally expected, somewhat the way UNC’s Tyler Hansbrough did in 2009. Based on recent conversations with various NBA scouts, here’s how I see these guys’ prospects:

Barnes’ NBA prototype: Jamal Mashburn.

The skinny: As recently as two weeks ago, a scout whose team will have a high pick still thought Barnes was top-five worthy. He said Barnes’ jump shot, combined with his 6-foo-8 size, make him one of the safer bets in this class.

But Barnes’ passive play in the NCAA tournament and lack of development as a driver raise questions. Coaches find it frustrating when they want it more for the player than the player wants for himself. So far Barnes hasn’t demonstrated much in the way of fire or desire.

Barnes could make some sense for the Charlotte Bobcats (although not necessarily top-4, where the Bobcats would likely pick). Barnes figures to be a small forward and Corey Maggette is currently aging out as the starter at that position. There’s no clear heir-apparent to Maggette.

Zeller’s NBA prototype: Joe Smith.

The skinny: I think one of the funnier misconceptions about Zeller is that he’s not enough of an athlete. There was a play Zeller made against Virginia this season when he split two defenders, drove straight to the rim and finished so explosively, I thought, “This is a non-athlete?’’

Zeller’s jump shot will be highly useful in NBA offenses, which tend to employ more pick-and-pops where the big man gets the ball back 12 to 17 feet from the rim. He has the size and toughness to average eight to 10 rebounds. You rebound, and coaches always find a way to play you. And teams keep offering you contracts.

Henson’s NBA prototype: JaVale McGee.

The skinny: Let’s get the obvious out of the way – Henson must gain bulk and strength to hold up in the lane over a long NBA career. We’ve seen many guys with his body type – Hilton Armstrong and Ryan Hollins come to mind. They’re all wiry, but you need to be wiry-strong.

Having said that, Henson has advantages: He’s ambidextrous, which makes him more effective as both a shot-blocker and a shooter. And he runs the floor aggressively. I’ve never met an NBA coach who complained, “That big guy just runs the break too much for my liking.’’

Marshall’s NBA prototype: Mark Jackson.

The skinny: I admit it, I was wrong. A year ago I couldn’t see Marshall as an NBA point guard, for his limitations as a shooter and athlete. But he’s such a sophisticated passer and ballhandler that you can’t turn your back on those skills.

He needs to be a better shooter, but NBA coaches say all the time that’s the easiest thing for a player to fix once basketball is his full-time profession. Also, market forces work in Marshall’s favor; since the NBA started strictly enforcing the no-hand check rule in defending ball handlers, point guard has become the league’s most important position. The last few drafts were rich in elite point guards, providing the NBA with Derrick Rose, John Wall and Kyrie Irving. There’s no player like that in this draft, so a next-level playmaker like Marshall should be in some demand.