The Mariners have acquired shortstop Jean Segura, outfielder Mitch Haniger and left-handed pitcher Zac Curtis from the Arizona Diamondbacks in exchange for right-handed pitcher Taijuan Walker and infielder Ketel Marte.
If you believe Segura finally broke out at 26, then you bought 2 years of prime performance before he hits FA. He was a 5.5 WAR player last year - that'd be quite something. It's also a suspicious, Melky Cabrera-like aberration in his stat line. The kid has talent though - 26-with-experience is a thing for a reason.
Mitch Haniger is ANOTHER decent-glove, kinda-tweener outfielder who has played all 3 positions, but his minor league statline is even prettier than Gamel's. DiPoto really wants to build that glove OF of productive hitters Royals-style, with O'Neill anchoring it from an offensive perspective moving forward. Haniger is one of those late-bloomers who looks like he might be putting it together. He's ready for more than a cup of coffee in the bigs.
Zac Curtis is a short lefty who has destroyed the minors with his 4-pitch repertoire and is basically fearless. He's a lefty who might not be a LOOGY, but I'm not sure he has the stuff to treat the bigs like he treated the minors. It'll be fun to find out though.
Essentially this was Walker for Segura, and Marte for the 2 others. How you feel about the deal is probably predicated on how you feel about Segura. It's definitely bold, though. DiPoto isn't scared of risk.