Grading the 5 offseason manager hires

With the hiring of Dave Roberts as manager of the Los Angeles Dodgers, all of the managerial vacancies have now been filled ahead of the 2016 season.

Here's a look at all five managers - two with extensive experience, and three fresh faces - who are taking on new roles, and some of the challenges they'll face:

Don Mattingly - Miami Marlins

Managerial record: 446-363 (.551)
Notable coaching experience: Special Instructor (New York Yankees, 7 seasons), Hitting Coach (Yankees, 3 seasons), Manager (Dodgers, 5 seasons)
Playing career accomplishments: 6-time All-Star, 9-time Gold Glover, 1985 AL MVP
Strengths: Ability to manage egos, patience, big-market experience

Mattingly led the Dodgers to three National League West titles in five years - and became the first manager in the franchise's storied history to guide the Dodgers to three straight playoff berths - but his inability to win in the playoffs ultimately led to the mutual decision to part ways. He's now walking into a much different situation in Miami, and his first task will be to establish ground rules with team owner Jeffrey Loria, who's known as a notorious micromanager. Mattingly signed a four-year deal, which sends a strong message to the young nucleus of talent on the squad that there will finally be some stability in the dugout moving forward.

Grade: A

Dusty Baker - Washington Nationals

Managerial record: 840-715 (.540)
Notable coaching experience: Manager (San Francisco Giants, 10 seasons), Manager (Chicago Cubs, 4 seasons), Manager (Cincinnati Reds, 6 seasons)
Playing career accomplishments: 1981 World Series champion, 2-time All-Star, 1977 NLCS MVP
Strengths: Experienced and proven winner, developing relationships with star players

Baker, 66, is a three-time NL Manager of the Year, but he wasn't the Nationals' first choice. Contract negotiations with former San Diego Padres skipper Bud Black fell through, opening the door for Baker to claim the job. Baker has been criticized for overusing his starting pitchers in the past, as well as his reluctance to embrace analytics. However, he excels in handling huge personalities as evidenced by his past relationships with Barry Bonds and Sammy Sosa, among others. He inherits a loaded roster that fell well short of expectations in 2015, and motivating the underachieving club will be his first major challenge.

Grade: B

Dave Roberts - Los Angeles Dodgers

Managerial record: 0-1 (.000)
Notable coaching experience: First Base Coach, Bench Coach (Padres, 5 seasons)
Playing career accomplishments: 2004 World Series champion, 10-year career as outfielder
Strengths: Charisma, respected by players, embraces advanced analytics

Gabe Kapler was the perceived front-runner for the high-profile position with the Dodgers, but Los Angeles decided to think outside the box, and hand Roberts the keys to one of the most expensive cars in baseball. Roberts has a huge personality and brings a ton of energy to the ballpark, and that could be the kind of boost this club needs to get over the hump and into the World Series. Or, the decision could backfire, and he'll clash with some of the bigger personalities on the club, such as Yasiel Puig.

Grade: B-

Scott Servais - Seattle Mariners

Managerial record: N/A
Notable coaching experience: N/A
Playing career accomplishments: 11-year career as catcher
Strengths: In-depth understanding of front office, takes hands-on approach with players

It's no secret former catchers can make great managers. Joe Girardi, Bruce Bochy, Mike Matheny, and Mike Scioscia are just a few former backstops who are currently excelling as managers, and the Mariners believe Servais will the next name to join this list. The 48-year-old worked alongside new general manager Jerry Dipoto for the past four years in the Los Angeles Angels' front office, and also has experience as a director of player development. The Mariners are coming off a very disappointing 2015 campaign, and the unproven Servais will have to win over veterans Robinson Cano and Felix Hernandez in order to reinstate the winning culture in Seattle.

Grade: C

Andy Green - San Diego Padres

Managerial record: N/A
Notable coaching experience: Third Base Coach (Arizona Diamondbacks (1 season), 2014 Southern League Manager of the Year
Playing career accomplishments: 4-year career as second and third baseman
Strengths: Experience developing talent in minors, ability to connect with players

The Padres could have taken the easy route and handed the job to Ron Gardenhire, but they elected to roll the dice on Green, who is now the second-youngest manager in the majors at age 38 (Tampa Bay Rays manager Kevin Cash is 37). Green has declared himself "not a territorial guy," and is open to ideas from others on the coaching staff, as well as the front office, to develop a plan for the underachieving club. He quickly rose through the coaching ranks in Arizona's farm system, and general manager A.J. Preller is optimistic he's the right man for the job. We'll see.

Grade: C-