Mark J. Rebilas-USA TODAY Sports
Corey Seager will likely be the favorite for NL Rookie of the Year honors.
Orlando Arcia, Milwaukee Brewers
The Brewers' decision to trade Jean Segura was a clear indication that they're ready to turn things over to top prospect Orlando Arcia at some point this year, but he'll be headed to the minors to begin the year.
"We're going to send (Arcia) to Triple-A and allow him to continue his development," general manager David Stearns told Adam McCalvy of MLB.com following the Segura trade. "Ultimately, as he continues to grow and mature as a player, his production and his continued development will dictate his timeline to the Major Leagues, rather than a move like this."
Verdict: Buy as a draft-and-stash.
J.P. Crawford, Philadelphia Phillies
Crawford has a chance to be a cornerstone piece of the Phillies' rebuilding efforts, and his advanced approach was evident in his 63/54 BB/K ratio last season when he hit .288/.380/.414 with 35 extra-base hits and 12 steals. The 21-year-old may wind up being a better real-life player than fantasy player as a rookie, though.
Corey Seager, Los Angeles Dodgers
The highest-ranked rookie in my preseason top 150 Big Board, Seager checked in at No. 60 overall and fourth among shortstops behind Carlos Correa, Xander Bogaerts and Troy Tulowitzki. He hit .337/.425/.561 with 13 extra-base hits in 113 plate appearances as a rookie, and he should be an immediate contributor out of the No. 2 spot in the lineup.
"Seager has a higher offensive ceiling than any big league shortstop except for Carlos Correa," wrote MLB.com's Prospect Watch.
Verdict: Buy as a top-five shortstop
Dansby Swanson, Atlanta Braves
Despite manager Fredi Gonzalez saying that performance will dictate when Swanson arrives in the majors for the Braves, leading some to believe he has a chance to win the job this spring, last year's No. 1 overall pick will almost certainly be headed to the minors.
The 22-year-old is as advanced as any shortstop prospect in recent memory, but chances are he won't make a legitimate impact until 2017 at the earliest.
Trea Turner, Washington Nationals
The Nationals' decision to sign Daniel Murphy and Stephen Drew this offseason means that Trea Turner won't be rushed into an everyday role in the majors, but as soon as he's deemed ready, the team will return Danny Espinosa to a utility role.
"He also saw time at the keystone in the big leagues, and it's possible that the Nats could use him interchangeably at both positions next season before ultimately deploying him as the everyday shortstop," wrote MLB.com's Prospect Watch.
That versatility should give him a better chance of making an impact in 2016.
Verdict: Buy as a late-round flier with upside.