It's a pile of decent back-ups. None can be projected as plus starters. They are place holders for Pedey.
Marco Hernandez: He seems like he has the "inside edge" on the opening day starter's job, but certainly is not a lock. He only has 84 innings at 2B at the ML level. He's played less than 10% of his innings at 2B in the minors. One would think a capable SS would be fine, defensively, at 2B, but his defensive metrics in those 84 innings are horrible (-28.7 UZR/150 and -2 DRS). His bat appears to project better than any of the competition. .284 BA/ .328 OBP in 116 ML PAs and .292/.324 in 427 PAs at AAA.
Brock Holt: I've always felt 2B was the only position Brock was a plus on defense, and the metrics back that position up: +7.1 UZR/150 and + 5 DRS in 746 innings at 2B. For a long time Brock kept his OPS over .700 (just barely) vs LHPs and RHPs. That's very good...for a sub. The concussion messed him up badly, but there is hope he can return to 2014-2016 form of .274 BA/.335 OBP/.381 SLG/.716. OPS. If he can give us +7 UZR and a .715 OPS, he'd be near a plus compared to the rest of the league's 2Bmen. The league 2B OPS has been between .700 and .750 since 2014. The +7 UZR/150 would make Holt a clear average (at worst) 2Bman. That's the optimist view. We all know how bad he can look as well.
Deven Marrero: He's out of options, so he may make the 25 man roster, if only to keep depth in the system. He's pretty much all glove and no bat, but he's really be quite decent vs LHPs, fueled by a .430 SLG%. His OPS vs LHPs is .710, but it is .487 vs RHPs. Some sort of platoon might work out for Deven. His UZR/150 at 2B (9.0) is almost as good as Pedey's (10.9).
Tzu-Wei Lin: He is largely an unknown who put up a .709 OPS in just 66 PAs last year. In 44 innings at 2B, last year, he pout up an amazing +30.7 UZR/150 (+1 DRS). His .602 OPS at AAA (154 PAs) and .580 OPS at AA (411 PAs) makes one wonder about his chances at winning the 2B jon, let alone a 25 man roster spot, especially with so many out-of-options bubble players.
Esteban Quiroz: Another largely unknown talent. He put up very good numbers in the Mexican League by never having a BA below .293 or an OPS below .845. He's the wild card in the group. Many consider the Mexican League to be similar to AAA, so maybe this kid has a real shot. In 2016, he hit .335/.449/.522/.971!
Blake Swihart & Michael Chavis: I don't see them as options at 2B.
Maybe someone from this group can rise and shine, but picking which one to give the first shot might not be easy. ST'ing will probably decide who starts and who makes the 25 man roster, but others might get a chance, if the first choice stumbles out of the gate. Hoiw long Pedey is out, and the threat of him never returning, is a dark cloud over our team. Having one of these guys come through would go a long way towards improving our odds at winning the division.
I'm hopeful but not really optimistic.