If you want to know what a "roster churn" is, look no further than the Arizona Diamondbacks.'Zona signing Madison Bumgarner raised some eyebrows, considering the teamjustshipped off Zack Greinkeat the 2019 trade deadline for four of Houston's top prospects. Weird that they'd believe they were better served not only eating money on that deal, but signing Bumgarner for e sentially what was left on that Greinke deal, even if the years are a bit longer.Butit should be applauded that a team went out and spent money, given the state of free agency over the past year Miami Marlins Jersey or so. Even if it's as weirda team as the Diamondbacks.But there's been lots and lotsand lotsof talent that's pa sed through the desert over that span, and it's resulted in just two NL West crowns since 2007 and three postseason appearances overall. The Diamondbacks haven't exactly kept core talent around and have mi sed on some trades while trying to figure out what they want to be.Still, because ofpayroll or decent trades or desire of prospects, lots of guys who could have stayed longer in Arizona uniforms just didn't.So, in alphabetical order by last name, here's a list of some talented guys who played for Arizona at some point. You may draw your own conclusions.Bauer, TrevorYears:2012Career accomplishments:All-Star (2018).Bauer pitched in just four games as a 21-year-old in 2012, but his ascent up the ranks was quick. He was drafted in the first round in 2011 out of UCLA, Cameron Maybin Jersey and just over a year later, he pitched in four games for the Diamondbacks before being sent back down to Triple-A.Bauer was traded in a three-team deal (a recurring theme with Arizona, as you'll soon find out), that sent Bauer to the Indians, Shin-Soo Choo from Cleveland to the Reds and Didi Gregorius from the Reds to the Diamondbacks. We'll see how that deal works out a bit later.Bauer has had an up-and-down butsolid MLB career, highlighted by his 2018 season, his lone All-Star appearance. It was also the only year to date thathe got a Cy Young vote, finishing sixth in the voting.Goldschmidt, PaulYears:2011-2018Career accomplishments:All-Star (2013-2018), three-time Gold Glove winner (2013, 2015, 2017), four-time Silver Slugger (2013, 2015, 2017, 2018).Mr. Diamondback was a perennial All-Star for Arizona and finished in the topfive of MVP voting three times. He had 209 home runs with the D-backs over eight seasons, a .930 OPS/145 OPS+ and played Gold Glove caliber defense for the majority of his tenure in the desert.With a year left on his contract, Arizona shipped Goldie off to St. Louis for Luke Weaver, Carson Kelly and Andy Young. Weaver and Kelly both performed well for Arizona in 2019; Weaver turned in a very promising year, pitching to a 2.94 ERA (3.07 FIP) in 12 starts(an injury-shortened season), while Kelly whacked 18 home runs for Arizona, a career high.Still, it's tough to seeone of the NL's best players traded a year before his contract ended but for now, it seems to be working out for Arizona as they enter a rebuild-on-the-fly phase.Gregorius, DidiYears:2013-2014Career accomplishments:N/AAfter being acquired in the aforementioned Bauer trade, Gregorius didn't do much of anything offensively in two seasons with the Diamondbacks. He slashed .241 Jeff Locke Jersey /.314/.368 in 183games over two seasons with Arizona. But that came with a bit of reason.In 2013, Gregorius was hit in the helmet by lefty Josh Outman, and he later attributed his inability to hit lefty pitching to that incident, saying he didn't feel comfortable stepping in the box against southpaws.In December 2014, Gregorius was part of a three-team trade which sent himto the Yankees, Shane Greene to the Tigers from the Yankees, and Robbie Ray from Detroit to the desert. Ray remains a fixture in the Arizona rotation, despite (somewhat unsurprising) trade rumors surrounding him in 2019.Gregorius continued to grow as a player with the Yankees and turned around his offensive woes, slashing .269/.313/.446 in the next five seasons with New York, setting career highs in home runs in JT Riddle Jersey three consecutive seasons between 2016 and2018 (20, 25, 27).Greinke, ZackYears:2016-2019Career accomplishments:AL Cy Young (2009), six-time All-Star (2009, 2014-2015, 2017-2019), six-time Gold Glove (2014-2019)The Diamondbacks dropped a bombshell by signing Greinke to a $206.5million deal on Dec. 8, 2015. The 2016D-backs roster was pretty good, but they finished with just 69 wins, and it was Chip Hale's last season as manager before Torey Lovullo was brought in.Arizonawon 93 games the next season.Greinke was coming off a Cy Young-caliber season in 2015 he probably should have won, if not for Jake Arrieta's insane second half but signing with the Diamondbacks was a shocker. It didn't nece sarily appear as though the Diamondbacks were ready to compete, especially with the ever-shifting roster, but setting a contract record for a pitcher at the time was very uncharacteristic.In 2019, Greinke was traded to the Astros at the trade-deadline buzzer. They also sent cash to help pay for the deal and got four pretty good prospects back in the proce s. Seems like a win-win, but time will tell.Haniger, MitchYears:2016Career accomplishments:All-Star (2018)Haniger was originally drafted by the Brewers but was traded to Arizona in 2014 for Gerardo Parra. Hewas then part of the deal that sent Taijuan Walker and Ketel Marte to the D-backs in 2016, and it's one that looks pretty OK on both sides. Though, Arizona does need outfielders at this point.Hanigerwas an ascending outfielder in 2018, hitting 26 home runs and ama sing a 6.1 bWAR in his first Jose Urena Jersey and bestfull season in the majors (157 games played).Injury cut short Haniger's 2019 season.Pollock, A.J.Years:2012 to 2018Career accomplishments: 2015 NL Gold GlovePollock had a fairly up-and-down career with the Diamondbacks, largely beset by injuries in his seven season with Snakes, so it's reasonable to see why Arizona let him walk in free agency to the Dodgers.Pollock had a career year in 2015, garnering some MVP votes as he finished with a 7.2bWAR. It was also the second and last time Pollock finished the season with more than120 games played.When Pollock is healthy and right, he's a very productive three-win player. Unfortunately, it's hard to gauge when that will happen. He mi sed a majority of the 2019 season while dealing with an elbow injury, his first year playing for the rival Dodgers.Scherzer, MaxYears:2008-2009Career accomplishments:Three-time Cy Young (2013, 2016-2017), World Series champion (2019), two no-hitters thrown.Scherzer was shipped to Detroit as part of a three-team trade tha