CLEVELAND, Ohio -- The Cleveland Browns have put the finishing touches on their new, rebuilt front office over the past few days.  Now it's time to go to work. 

With a treasure trove of draft picks and a plethora of cap space available, this 2018 off-season is one of the most important in recent memory.  It's the off-season former executive Sashi Brown and owner Jimmy Haslam have been pointing to since constructing a long-term rebuilding plan. 

The 2018 NFL Draft is months away.  There's lots of time for things to change.  Players have individual workouts, the scouting combine and other ways to showcase their skills.  There will be "risers" and "fallers" throughout the process and the cloudy quarterback picture might start to clear up eventually. 

But this All-Browns Mock Draft is a look at what they can get done with 12 picks, looking to fill needs. 

The projections for this exercise were made using fanspeak.com's 2018 NFL Mock Draft simulator along with Matt Miller's Big Board from Bleacher Report, which was last updated on Jan. 10.  To make it as realistic as possible, keeping great players from being available in odd places, I set the algorithm to "difficult," trying to make the picks much tighter and the challenge more formidable. 

If you want the full results, they can be found here. 

By Chris Fedor, cleveland.com

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Round 1, Pick No.  1

Josh Rosen, quarterback, UCLA

This should be Baker Mayfield, who is the best QB prospect in the draft.  But it's hard to envision a new general manager -- even one with John Dorsey's league wide reputation -- pulling the trigger on an undersized signal caller who goes into the exception category.  The Browns opt for Rosen instead, perhaps even to swap with the New York Giants or Denver Broncos so Cleveland can move back for Mayfield.  Rosen needs less polishing than USC's Sam Darnold, who has only been playing quarterback for about three years after switching from linebacker in high school. 

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Round 1, Pick No.  4

Minkah Fitzpatrick, defensive back, Alabama

Cornerback?  Safety?  How about defensive cornerstone.  That's what Fitzpatrick turned into while at Alabama and there's no reason to think he can't make the same impact at the next level. 

If the Browns can't figure out how to best maximize Fitzpatrick then there are even more problems with the coaching staff than it seems.  With Fitzpatrick in the mix, the Browns will no longer need to play 2017 first rounder Jabrill Peppers 35 yards away from the line of scrimmage, helping two defensive back spots with one selection. 

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Round 2, Pick No.  33

Isaiah Oliver, cornerback, Colorado

While the Browns morphed into one of the league's best run defenses, they ranked bottom half against the pass.  Jason McCourty, one of the team's best players this past season, will be 31 when the 2018 campaign begins.  Jamar Taylor isn't an NFL-caliber starter.  If Dorsey doesn't attack this spot in free agency, Oliver would be a nice addition.  Tall, long and speedy, Oliver would give the Browns a talented youngster to develop into a potential No.  1 corner. 

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Round 2, Pick No.  35

Ronald Jones II, running back, USC

When Dorsey arrived in Kansas City, he inherited Pro Bowl running back Jamaal Charles, seeing the value of a foundation back to take pressure off the QB.  This past draft, he plucked Kareem Hunt in Round 3.  With Isaiah Crowell's future uncertain and head coach Hue Jackson having no clue how to keep Duke Johnson involved for all four quarters, Jones makes plenty of sense.  A tough, big-play back, Jones rushed for 1,550 yards and 19 touchdowns this season en route to All-Pac 12 First-Team honors. 

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Round 2, Pick No.  63

Anthony Miller, wide receiver, Memphis

Snagging Rosen with the top pick puts pressure on the front office to give him weapons to succeed.  Miller, who capped a second straight 90-reception season this past year at Memphis, finished his career with 37 touchdown grabs and would add to Cleveland's budding group of pass catchers. 

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Round 3, Pick No.  65

Jerome Baker, linebacker, Ohio State

The Browns need more speed and athleticism at linebacker.  Enter Baker, a semifinalist for the Butkus Award in 2017. 

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Round 4, Pick No.  103

Quenton Meeks, cornerback, Stanford

With so many picks, the Browns can focus on one specific area to attack, using numerous resources to improve quickly.  Defensive back should be that spot.  Meeks decided to forego his senior season, entering the draft early after receiving All-Pac 12 Second-Team honors this season.  He finished with 65 tackles, two interceptions and eight pass breakups, showing the potential to be a quality corner thanks to his combination of size, length and understanding of the position. 

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Round 4, Pick No.  125

Michael Dieter, center, Wisconsin

The Browns signed J.C. Tretter to a three-year deal last off-season, helping fill one of the holes along the offensive line.  He played well.  But depth is important and Dieter can be developed slowly, before potentially taking over for Tretter down the road. 

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Round 5, Pick No.  140

Brandon Parker, offensive tackle, North Carolina A&T

The Browns need left tackle Joe Thomas back.  If he returns, right tackle remains the one problem area along the offensive line.  A 6-foot-8, 310 pound mountain, Parker is an intriguing prospect and two-time Mid-Eastern Athletic Conference (MEAC) Offensive Lineman of the Year. 

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Round 5, Pick No.  161

DaeSean Hamilton, wide receiver, Penn State

The Penn State wideout enters the draft with a bit of momentum, capping his best season with a strong performance in the Fiesta Bowl (five catches, 110 yards and two touchdowns).  He may not have the gaudy stats as some of the other prospects, but Hamilton, who could be best suited for the slot at the next level, has strong hands and showed the ability to make tough, in-traffic catches. 

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Round 6, Pick No.  179

Chikwe Obasih, defensive end, Wisconsin

After suffering a leg injury early in the season, Obasih finally returned for the final six games, having little impact in his senior season.  But this late into the draft, the Browns take a flyer on a 2016 All-Big Ten Honorable Mention player. 

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Round 7, Pick No.  220

Mike White, quarterback, Western Kentucky

Given the continued QB problems, the Browns toss another dart at the board with White, the former baseball player, who has the size (6-foot-4, 225 pounds), smarts and accuracy to warrant late-round consideration.  White completed 66 percent of his passes in 2017 for 4,177 yards with 26 touchdowns and eight interceptions.