Below is a list of top-rated prospects over the past 15 years to be dealt in what were big trades at the time. The results of those trades sometimes act as a cautionary tale for prospect lovers, but there are certainly some success stories as well.
2000 -- Drew Henson: Traded from the New York Yankees to the Cincinnati Reds with Jackson Melian, Brian Reith and Ed Yarnall for Mike Frank and Denny Neagle, July 2000. Traded back to New York with Michael Coleman for Wily Mo Pena, March 2001.
No. 100 -- 1999 Preseason
No. 24 -- 2000 Preseason
No. 14 -- 2001 Preseason
No. 9 -- 2002 Preseason
(*Henson rankings are according to Baseball America)
Henson got a grand total of nine big league at-bats over two years for the Yankees before pursuing an NFL career.
2004 -- Scott Kazmir : Traded from the New York Mets to the Tampa Bay Devil Rays for Bartolome Fortunato and Victor Zambrano, July 2004.
No. 8 -- 2004 Preseason
No. 4 -- 2005 Preseason
Kazmir did finish ninth in the 2005 Rookie of the Year voting, but had a bit of an uneven career until really finding his groove in 2014.
2005 -- Andy Marte: Traded from the Atlanta Braves to the Boston Red Sox for Edgar Renteria and cash, December 2005. Traded from Boston Red Sox to Cleveland Indians with Guillermo Mota, Kelly Shoppach, cash and PTBNL for Josh Bard, Coco Crisp and David Riske, January 2006.
No. 14 -- 2004 Preseason
No. 9 -- 2005 Preseason
No. 11 -- 2006 Preseason
Perhaps the poster child for "can't miss" prospects who did just that, Marte has picked up just over 850 big league at-bats with a .634 OPS.
2007 -- Cameron Maybin and Andrew Miller: Traded from the Detroit Tigers to the Florida Marlins with Dallas Trahern, Burke Badenhop, Frankie De La Cruz and Mike Rabelo for Miguel Cabrera and Dontrelle Willis, December 2007.
No. 6 -- 2006 Postseason (Maybin)
No. 3 -- 2007 Postseason (Maybin)
No. 5 -- 2008 Postseason (Maybin)
No. 19 -- 2006 Postseason (Miller)
The toolsy Maybin has been inconsistent and has been traded three more times since, but is coming off his best season to date. Miller struggled as a starter, found his niche in the bullpen and is a hot commodity as a closer.
2010 -- Tyler Skaggs: Traded from the Los Angeles Angels to the Arizona Diamondbacks as PTBNL with Patrick Corbin, Rafael Rodriguez and Joe Sanders for Dan Haren, July 2010. He went back to the Angels in a three-team deal in December 2013.
No. 21 -- 2012 Preseason
No. 10 -- 2013 Preseason
Skaggs has the stuff to be a frontline left-handed starter, but Tommy John surgery shelved him in 2014 and he's yet to return to the mound.
2010 -- Justin Smoak: Traded from the Texas Rangers to the Seattle Mariners with Matt Lawson, Blake Beavan and Josh Lueke for Cliff Lee and Mark Lowe, July 2010.
No. 9 -- 2010 Preseason
The 2008 first-round pick drew early comparisons to Mark Teixeira, but the switch-hitting first baseman has never been a consistent run-producer, with a career .699 OPS.
2011 -- Jarrod Parker: Traded from the Arizona Diamondbacks to the Oakland A's with Ryan Cook and Collin Cowgill for Craig Breslow, Trevor Cahill and cash, December 2011.
No. 19 -- 2008 Postseason
No. 21 -- 2010 Preseason
No. 29 -- 2011 Preseason
When healthy, Parker has shown glimpses of being the frontline starter many saw in him when he was a first-round pick in 2007, but two Tommy John surgeries have kept him off the mound since 2013.
2012 -- Jesus Montero: Traded from the New York Yankees to the Seattle Mariners with Hector Noesi for Jose Campos and Michael Pineda, January 2012.
No. 40 -- 2008 Postseason
No. 19 -- 2010 Preseason
No. 9 -- 2011 Preseason
Montero started out as an offensive-minded catching phenom, then moved to first base permanently in 2014 when his defense never improved, all the while posting a .693 OPS in the big leagues.
2012 -- Wil Myers: Traded from the Kansas City Royals to the Tampa Bay Rays with Patrick Leonard, Mike Montgomery and Jake Odorizzi for Wade Davis, James Shields and PTBNL, December 2012.
No. 33 -- 2010 Preseason
No. 16 -- 2011 Preseason
No. 19 -- 2012 Preseason
No. 4 -- 2013 Preseason
Things started out well for Myers as he won American League Rookie of the Year honors in 2013, but he hasn't produced, or stayed healthy, since, getting traded a second time to the Padres a year ago.
2012 -- Noah Syndergaard: Traded from the Toronto Blue Jays to the New York Mets with Wuilmer Becerra, John Buck and Travis d'Arnaud for R.A. Dickey, Mike Nickeas and Josh Thole, December 2012.
No. 95 -- 2012 Preseason
No. 29 -- 2013 Preseason
No. 11 -- 2014 Preseason
No. 11 -- 2015 Preseason
Syndergaard rose to elite prospect status as a Met, then helped fortify the big league club's young and exciting rotation in 2015, making four postseason appearances.
2012 -- Trevor Bauer: Traded from the Arizona Diamondbacks to the Cleveland Indians as part of three-team trade with the Cincinnati Reds with Matt Albers and Bryan Shaw. Cincinnati sent Didi Gregorius to Arizona and sent Drew Stubbs to Cleveland, which sent Lars Anderson and Tony Sipp to Arizona; Shin-Soo Choo, Jason Donald and cash to Cincinnati, December 2012.
No. 9 -- 2012 Preseason
No. 17 -- 2013 Preseason
No. 73 -- 2014 Preseason
The former No. 3 overall pick has been a part of the Indians' rotation the past two years, though struggles with command have kept him from being consistently effective.
2014 -- Addison Russell: Traded from the Oakland A's to the Chicago Cubs with Billy McKinney, Dan Straily and cash for Jason Hammel and Jeff Samardzija, July 2014.
No. 48 -- 2013 Preseason
No. 12 -- 2014 Preseason
No. 5 -- 2015 Preseason
Injury cut Russell's postseason short, but it's clear he's being counted on as the Cubs' everyday shortstop while being just 22 for the 2016 season.
2015 -- Daniel Norris: Traded from the Toronto Blue Jays to the Detroit Tigers with Jairo Labourt and Matt Boyd for David Price, July 2015.
No. 18 -- 2015 Preseason
Command has been the biggest stumbling block on the mound for Norris, though he was more effective in the big leagues for the Tigers following the trade. He had to deal with surgery to remove thyroid cancer, but is expected to be 100 percent in 2016.